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Standard_D2s_v3

staff0rd
Jun 9th, 2019
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  1. Process ID: 1
  2. [00:00:00] Current: 119, peak: 119, connected: 108, disconnected: 0, rate: 108/s
  3. [00:00:02] Current: 246, peak: 246, connected: 127, disconnected: 0, rate: 127/s
  4. [00:00:03] Current: 380, peak: 380, connected: 134, disconnected: 0, rate: 134/s
  5. [00:00:03] Current: 513, peak: 513, connected: 133, disconnected: 0, rate: 133/s
  6. [00:00:05] Current: 647, peak: 647, connected: 134, disconnected: 0, rate: 134/s
  7. [00:00:06] Current: 868, peak: 868, connected: 221, disconnected: 0, rate: 221/s
  8. [00:00:07] Current: 1191, peak: 1191, connected: 323, disconnected: 0, rate: 323/s
  9. [00:00:08] Current: 1528, peak: 1528, connected: 337, disconnected: 0, rate: 337/s
  10. [00:00:09] Current: 1866, peak: 1866, connected: 338, disconnected: 0, rate: 338/s
  11. [00:00:10] Current: 2200, peak: 2200, connected: 334, disconnected: 0, rate: 334/s
  12. [00:00:11] Current: 2619, peak: 2619, connected: 419, disconnected: 0, rate: 419/s
  13. [00:00:12] Current: 3242, peak: 3242, connected: 623, disconnected: 0, rate: 623/s
  14. [00:00:13] Current: 3930, peak: 3930, connected: 688, disconnected: 0, rate: 688/s
  15. [00:00:14] Current: 4608, peak: 4608, connected: 678, disconnected: 0, rate: 678/s
  16. [00:00:15] Current: 5280, peak: 5280, connected: 672, disconnected: 0, rate: 672/s
  17. [00:00:16] Current: 5965, peak: 5965, connected: 685, disconnected: 0, rate: 685/s
  18. [00:00:17] Current: 6641, peak: 6641, connected: 676, disconnected: 0, rate: 676/s
  19. [00:00:18] Current: 7349, peak: 7349, connected: 708, disconnected: 0, rate: 708/s
  20. [00:00:19] Current: 8155, peak: 8155, connected: 806, disconnected: 0, rate: 806/s
  21. [00:00:20] Current: 8981, peak: 8981, connected: 826, disconnected: 0, rate: 826/s
  22. [00:00:21] Current: 9542, peak: 9542, connected: 561, disconnected: 0, rate: 561/s
  23. [00:00:22] Current: 10364, peak: 10364, connected: 822, disconnected: 0, rate: 822/s
  24. [00:00:23] Current: 11174, peak: 11174, connected: 810, disconnected: 0, rate: 810/s
  25. [00:00:24] Current: 12005, peak: 12005, connected: 831, disconnected: 0, rate: 831/s
  26. [00:00:25] Current: 12896, peak: 12896, connected: 891, disconnected: 0, rate: 891/s
  27. [00:00:26] Current: 13832, peak: 13832, connected: 936, disconnected: 0, rate: 936/s
  28. [00:00:27] Current: 14784, peak: 14784, connected: 952, disconnected: 0, rate: 952/s
  29. [00:00:28] Current: 15763, peak: 15763, connected: 979, disconnected: 0, rate: 979/s
  30. [00:00:29] Current: 16688, peak: 16688, connected: 925, disconnected: 0, rate: 925/s
  31. [00:00:30] Current: 17656, peak: 17656, connected: 968, disconnected: 0, rate: 968/s
  32. [00:00:31] Current: 18156, peak: 18156, connected: 500, disconnected: 0, rate: 500/s
  33. [00:00:32] Current: 19012, peak: 19012, connected: 856, disconnected: 0, rate: 856/s
  34. [00:00:33] Current: 19644, peak: 19644, connected: 632, disconnected: 0, rate: 632/s
  35. [00:00:34] Current: 20612, peak: 20612, connected: 968, disconnected: 0, rate: 968/s
  36. [00:00:35] Current: 21585, peak: 21585, connected: 973, disconnected: 0, rate: 973/s
  37. [00:00:36] Current: 22565, peak: 22565, connected: 980, disconnected: 0, rate: 980/s
  38. [00:00:37] Current: 23483, peak: 23483, connected: 918, disconnected: 0, rate: 918/s
  39. [00:00:38] Current: 24444, peak: 24444, connected: 961, disconnected: 0, rate: 961/s
  40. [00:00:39] Current: 25408, peak: 25408, connected: 964, disconnected: 0, rate: 964/s
  41. [00:00:40] Current: 25637, peak: 25637, connected: 229, disconnected: 0, rate: 229/s
  42. [00:00:41] Current: 26485, peak: 26485, connected: 848, disconnected: 0, rate: 848/s
  43. [00:00:42] Current: 27420, peak: 27420, connected: 935, disconnected: 0, rate: 935/s
  44. [00:00:43] Current: 28263, peak: 28263, connected: 843, disconnected: 0, rate: 843/s
  45. [00:00:44] Current: 29132, peak: 29132, connected: 869, disconnected: 0, rate: 869/s
  46. [00:00:45] Current: 29974, peak: 29974, connected: 842, disconnected: 0, rate: 842/s
  47. [00:00:46] Current: 30860, peak: 30860, connected: 886, disconnected: 0, rate: 886/s
  48. [00:00:47] Current: 31748, peak: 31748, connected: 888, disconnected: 0, rate: 888/s
  49. [00:00:48] Current: 32640, peak: 32640, connected: 892, disconnected: 0, rate: 892/s
  50. [00:00:49] Current: 33102, peak: 33102, connected: 462, disconnected: 0, rate: 462/s
  51. [00:00:50] Current: 33737, peak: 33737, connected: 635, disconnected: 0, rate: 635/s
  52. [00:00:51] Current: 34499, peak: 34499, connected: 762, disconnected: 0, rate: 762/s
  53. [00:00:52] Current: 35321, peak: 35321, connected: 822, disconnected: 0, rate: 822/s
  54. [00:00:53] Current: 36165, peak: 36165, connected: 844, disconnected: 0, rate: 844/s
  55. [00:00:54] Current: 37030, peak: 37030, connected: 865, disconnected: 0, rate: 865/s
  56. [00:00:55] Current: 37866, peak: 37866, connected: 836, disconnected: 0, rate: 836/s
  57. [00:00:56] Current: 38511, peak: 38511, connected: 645, disconnected: 0, rate: 645/s
  58. [00:00:57] Current: 39453, peak: 39453, connected: 942, disconnected: 0, rate: 942/s
  59. [00:00:58] Current: 39703, peak: 39703, connected: 250, disconnected: 0, rate: 250/s
  60. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  61. Heartbeat took longer than "00:00:01" at "06/10/2019 03:25:30 +00:00".
  62. [00:00:59] Current: 39931, peak: 39931, connected: 228, disconnected: 0, rate: 228/s
  63. [00:01:00] Current: 40422, peak: 40422, connected: 491, disconnected: 0, rate: 491/s
  64. [00:01:01] Current: 41205, peak: 41205, connected: 783, disconnected: 0, rate: 783/s
  65. [00:01:02] Current: 41502, peak: 41502, connected: 297, disconnected: 0, rate: 297/s
  66. [00:01:03] Current: 42135, peak: 42135, connected: 633, disconnected: 0, rate: 633/s
  67. [00:01:04] Current: 42935, peak: 42935, connected: 800, disconnected: 0, rate: 800/s
  68. [00:01:05] Current: 43570, peak: 43570, connected: 635, disconnected: 0, rate: 635/s
  69. [00:01:06] Current: 44445, peak: 44445, connected: 875, disconnected: 0, rate: 875/s
  70. [00:01:07] Current: 44932, peak: 44932, connected: 487, disconnected: 0, rate: 487/s
  71. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  72. Heartbeat took longer than "00:00:01" at "06/10/2019 03:25:40 +00:00".
  73. [00:01:09] Current: 44955, peak: 44955, connected: 23, disconnected: 0, rate: 23/s
  74. [00:01:10] Current: 45298, peak: 45298, connected: 343, disconnected: 0, rate: 343/s
  75. [00:01:11] Current: 46008, peak: 46008, connected: 710, disconnected: 0, rate: 710/s
  76. [00:01:12] Current: 46356, peak: 46356, connected: 348, disconnected: 0, rate: 348/s
  77. [00:01:13] Current: 47033, peak: 47033, connected: 677, disconnected: 0, rate: 677/s
  78. [00:01:14] Current: 47724, peak: 47724, connected: 691, disconnected: 0, rate: 691/s
  79. [00:01:15] Current: 48324, peak: 48324, connected: 600, disconnected: 0, rate: 600/s
  80. [00:01:16] Current: 48998, peak: 48998, connected: 674, disconnected: 0, rate: 674/s
  81. [00:01:17] Current: 49589, peak: 49589, connected: 591, disconnected: 0, rate: 591/s
  82. [00:01:18] Current: 49893, peak: 49893, connected: 304, disconnected: 0, rate: 304/s
  83. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  84. Heartbeat took longer than "00:00:01" at "06/10/2019 03:25:50 +00:00".
  85. [00:01:19] Current: 50220, peak: 50220, connected: 327, disconnected: 0, rate: 327/s
  86. [00:01:20] Current: 50588, peak: 50588, connected: 368, disconnected: 0, rate: 368/s
  87. [00:01:21] Current: 51192, peak: 51192, connected: 604, disconnected: 0, rate: 604/s
  88. [00:01:22] Current: 51702, peak: 51702, connected: 510, disconnected: 0, rate: 510/s
  89. [00:01:23] Current: 52469, peak: 52469, connected: 767, disconnected: 0, rate: 767/s
  90. [00:01:24] Current: 53280, peak: 53280, connected: 811, disconnected: 0, rate: 811/s
  91. [00:01:25] Current: 53726, peak: 53726, connected: 446, disconnected: 0, rate: 446/s
  92. [00:01:26] Current: 54556, peak: 54556, connected: 830, disconnected: 0, rate: 830/s
  93. [00:01:28] Current: 54591, peak: 54591, connected: 35, disconnected: 0, rate: 35/s
  94. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  95. Heartbeat took longer than "00:00:01" at "06/10/2019 03:25:59 +00:00".
  96. [00:01:29] Current: 54917, peak: 54917, connected: 326, disconnected: 0, rate: 326/s
  97. [00:01:30] Current: 55596, peak: 55596, connected: 679, disconnected: 0, rate: 679/s
  98. [00:01:31] Current: 56147, peak: 56147, connected: 551, disconnected: 0, rate: 551/s
  99. [00:01:32] Current: 56793, peak: 56793, connected: 646, disconnected: 0, rate: 646/s
  100. [00:01:33] Current: 57411, peak: 57411, connected: 618, disconnected: 0, rate: 618/s
  101. [00:01:34] Current: 58118, peak: 58118, connected: 707, disconnected: 0, rate: 707/s
  102. [00:01:35] Current: 58693, peak: 58693, connected: 575, disconnected: 0, rate: 575/s
  103. [00:01:37] Current: 59274, peak: 59274, connected: 581, disconnected: 0, rate: 581/s
  104. [00:01:41] Current: 59332, peak: 59332, connected: 58, disconnected: 0, rate: 58/s
  105. [00:01:42] Current: 59343, peak: 59343, connected: 11, disconnected: 0, rate: 11/s
  106. [00:01:43] Current: 59387, peak: 59387, connected: 44, disconnected: 0, rate: 44/s
  107. [00:01:44] Current: 59783, peak: 59783, connected: 396, disconnected: 0, rate: 396/s
  108. [00:01:45] Current: 60341, peak: 60341, connected: 558, disconnected: 0, rate: 558/s
  109. [00:01:47] Current: 60768, peak: 60768, connected: 427, disconnected: 0, rate: 427/s
  110. [00:01:48] Current: 60781, peak: 60781, connected: 13, disconnected: 0, rate: 13/s
  111. [00:01:49] Current: 60964, peak: 60964, connected: 183, disconnected: 0, rate: 183/s
  112. [00:01:50] Current: 61387, peak: 61387, connected: 423, disconnected: 0, rate: 423/s
  113. [00:01:51] Current: 61957, peak: 61957, connected: 570, disconnected: 0, rate: 570/s
  114. [00:01:52] Current: 62623, peak: 62623, connected: 666, disconnected: 0, rate: 666/s
  115. [00:01:53] Current: 62928, peak: 62928, connected: 305, disconnected: 0, rate: 305/s
  116. [00:01:54] Current: 63225, peak: 63225, connected: 297, disconnected: 0, rate: 297/s
  117. [00:01:56] Current: 63582, peak: 63582, connected: 357, disconnected: 0, rate: 357/s
  118. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  119. Heartbeat took longer than "00:00:01" at "06/10/2019 03:26:27 +00:00".
  120. [00:01:57] Current: 63720, peak: 63720, connected: 138, disconnected: 0, rate: 138/s
  121. [00:01:58] Current: 63896, peak: 63896, connected: 176, disconnected: 0, rate: 176/s
  122. [00:01:59] Current: 64673, peak: 64673, connected: 777, disconnected: 0, rate: 777/s
  123. [00:02:00] Current: 65177, peak: 65177, connected: 504, disconnected: 0, rate: 504/s
  124. [00:02:01] Current: 65539, peak: 65539, connected: 362, disconnected: 0, rate: 362/s
  125. [00:02:02] Current: 65941, peak: 65941, connected: 402, disconnected: 0, rate: 402/s
  126. [00:02:03] Current: 66294, peak: 66294, connected: 353, disconnected: 0, rate: 353/s
  127. [00:02:05] Current: 66474, peak: 66474, connected: 180, disconnected: 0, rate: 180/s
  128. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  129. Heartbeat took longer than "00:00:01" at "06/10/2019 03:26:37 +00:00".
  130. [00:02:06] Current: 66629, peak: 66629, connected: 155, disconnected: 0, rate: 155/s
  131. [00:02:07] Current: 66968, peak: 66968, connected: 339, disconnected: 0, rate: 339/s
  132. [00:02:08] Current: 67605, peak: 67605, connected: 637, disconnected: 0, rate: 637/s
  133. [00:02:09] Current: 67771, peak: 67771, connected: 166, disconnected: 0, rate: 166/s
  134. [00:02:10] Current: 68167, peak: 68167, connected: 396, disconnected: 0, rate: 396/s
  135. [00:02:11] Current: 68846, peak: 68846, connected: 679, disconnected: 0, rate: 679/s
  136. [00:02:12] Current: 69005, peak: 69005, connected: 159, disconnected: 0, rate: 159/s
  137. [00:02:14] Current: 69180, peak: 69180, connected: 175, disconnected: 0, rate: 175/s
  138. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  139. Heartbeat took longer than "00:00:01" at "06/10/2019 03:26:46 +00:00".
  140. [00:02:15] Current: 69192, peak: 69192, connected: 12, disconnected: 0, rate: 12/s
  141. [00:02:16] Current: 69222, peak: 69222, connected: 30, disconnected: 0, rate: 30/s
  142. [00:02:17] Current: 69305, peak: 69305, connected: 83, disconnected: 0, rate: 83/s
  143. [00:02:19] Current: 69453, peak: 69453, connected: 148, disconnected: 0, rate: 148/s
  144. [00:02:20] Current: 69595, peak: 69595, connected: 142, disconnected: 0, rate: 142/s
  145. [00:02:21] Current: 70137, peak: 70137, connected: 542, disconnected: 0, rate: 542/s
  146. [00:02:22] Current: 70201, peak: 70201, connected: 64, disconnected: 0, rate: 64/s
  147. [00:02:24] Current: 70393, peak: 70393, connected: 192, disconnected: 0, rate: 192/s
  148. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  149. Heartbeat took longer than "00:00:01" at "06/10/2019 03:26:56 +00:00".
  150. [00:02:25] Current: 70435, peak: 70435, connected: 42, disconnected: 0, rate: 42/s
  151. [00:02:26] Current: 70484, peak: 70484, connected: 49, disconnected: 0, rate: 49/s
  152. [00:02:27] Current: 70651, peak: 70651, connected: 167, disconnected: 0, rate: 167/s
  153. [00:02:28] Current: 70693, peak: 70693, connected: 42, disconnected: 0, rate: 42/s
  154. [00:02:29] Current: 70735, peak: 70735, connected: 42, disconnected: 0, rate: 42/s
  155. [00:02:30] Current: 70954, peak: 70954, connected: 219, disconnected: 0, rate: 219/s
  156. [00:02:31] Current: 71035, peak: 71035, connected: 81, disconnected: 0, rate: 81/s
  157. [00:02:32] Current: 71212, peak: 71212, connected: 177, disconnected: 0, rate: 177/s
  158. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  159. Heartbeat took longer than "00:00:01" at "06/10/2019 03:27:06 +00:00".
  160. [00:02:34] Current: 71235, peak: 71235, connected: 23, disconnected: 0, rate: 23/s
  161. [00:02:35] Current: 71235, peak: 71235, connected: 0, disconnected: 0, rate: 0/s
  162. [00:02:36] Current: 71322, peak: 71322, connected: 87, disconnected: 0, rate: 87/s
  163. [00:02:38] Current: 71384, peak: 71384, connected: 62, disconnected: 0, rate: 62/s
  164. [00:02:39] Current: 71411, peak: 71411, connected: 27, disconnected: 0, rate: 27/s
  165. [00:02:40] Current: 71535, peak: 71535, connected: 124, disconnected: 0, rate: 124/s
  166. [00:02:41] Current: 71921, peak: 71921, connected: 386, disconnected: 0, rate: 386/s
  167. [00:02:42] Current: 71948, peak: 71948, connected: 27, disconnected: 0, rate: 27/s
  168. [00:02:44] Current: 71948, peak: 71948, connected: 0, disconnected: 0, rate: 0/s
  169. [00:02:45] Current: 71988, peak: 71988, connected: 40, disconnected: 0, rate: 40/s
  170. [00:02:46] Current: 72124, peak: 72124, connected: 136, disconnected: 0, rate: 136/s
  171. [00:02:47] Current: 72211, peak: 72211, connected: 87, disconnected: 0, rate: 87/s
  172. [00:02:48] Current: 72286, peak: 72286, connected: 75, disconnected: 0, rate: 75/s
  173. [00:02:49] Current: 72419, peak: 72419, connected: 133, disconnected: 0, rate: 133/s
  174. [00:02:50] Current: 72680, peak: 72680, connected: 261, disconnected: 0, rate: 261/s
  175. [00:02:51] Current: 72714, peak: 72714, connected: 34, disconnected: 0, rate: 34/s
  176. [00:02:53] Current: 72714, peak: 72714, connected: 0, disconnected: 0, rate: 0/s
  177. [00:02:55] Current: 72769, peak: 72769, connected: 55, disconnected: 0, rate: 55/s
  178. [00:02:56] Current: 72834, peak: 72834, connected: 65, disconnected: 0, rate: 65/s
  179. [00:02:57] Current: 73013, peak: 73013, connected: 179, disconnected: 0, rate: 179/s
  180. [00:02:58] Current: 73014, peak: 73014, connected: 1, disconnected: 0, rate: 1/s
  181. [00:02:59] Current: 73135, peak: 73135, connected: 121, disconnected: 0, rate: 121/s
  182. [00:03:00] Current: 73360, peak: 73360, connected: 225, disconnected: 0, rate: 225/s
  183. [00:03:01] Current: 73628, peak: 73628, connected: 268, disconnected: 0, rate: 268/s
  184. [00:03:03] Current: 73747, peak: 73747, connected: 119, disconnected: 0, rate: 119/s
  185. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  186. Heartbeat took longer than "00:00:01" at "06/10/2019 03:27:35 +00:00".
  187. [00:03:04] Current: 73779, peak: 73779, connected: 32, disconnected: 0, rate: 32/s
  188. [00:03:05] Current: 74016, peak: 74016, connected: 237, disconnected: 0, rate: 237/s
  189. [00:03:06] Current: 74056, peak: 74056, connected: 40, disconnected: 0, rate: 40/s
  190. [00:03:07] Current: 74181, peak: 74181, connected: 125, disconnected: 0, rate: 125/s
  191. [00:03:08] Current: 74211, peak: 74211, connected: 30, disconnected: 0, rate: 30/s
  192. [00:03:09] Current: 74640, peak: 74640, connected: 429, disconnected: 0, rate: 429/s
  193. [00:03:10] Current: 75050, peak: 75050, connected: 410, disconnected: 0, rate: 410/s
  194. [00:03:12] Current: 75076, peak: 75076, connected: 26, disconnected: 0, rate: 26/s
  195. [00:03:14] Current: 75161, peak: 75161, connected: 85, disconnected: 0, rate: 85/s
  196. [00:03:15] Current: 75173, peak: 75173, connected: 12, disconnected: 0, rate: 12/s
  197. [00:03:16] Current: 75224, peak: 75224, connected: 51, disconnected: 0, rate: 51/s
  198. [00:03:18] Current: 75237, peak: 75237, connected: 13, disconnected: 0, rate: 13/s
  199. [00:03:19] Current: 75315, peak: 75315, connected: 78, disconnected: 0, rate: 78/s
  200. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  201. Heartbeat took longer than "00:00:01" at "06/10/2019 03:27:51 +00:00".
  202. [00:03:20] Current: 75350, peak: 75350, connected: 35, disconnected: 0, rate: 35/s
  203. [00:03:21] Current: 75350, peak: 75350, connected: 0, disconnected: 0, rate: 0/s
  204. [00:03:24] Current: 75361, peak: 75361, connected: 11, disconnected: 0, rate: 11/s
  205. [00:03:26] Current: 75431, peak: 75431, connected: 70, disconnected: 0, rate: 70/s
  206. [00:03:27] Current: 75431, peak: 75431, connected: 0, disconnected: 0, rate: 0/s
  207. [00:03:28] Current: 75431, peak: 75431, connected: 0, disconnected: 0, rate: 0/s
  208. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  209. Heartbeat took longer than "00:00:01" at "06/10/2019 03:28:00 +00:00".
  210. [00:03:29] Current: 75472, peak: 75472, connected: 41, disconnected: 0, rate: 41/s
  211. [00:03:30] Current: 75519, peak: 75519, connected: 47, disconnected: 0, rate: 47/s
  212. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  213. Heartbeat took longer than "00:00:01" at "06/10/2019 03:28:03 +00:00".
  214. [00:03:33] Current: 75536, peak: 75536, connected: 17, disconnected: 0, rate: 17/s
  215. [00:03:34] Current: 75536, peak: 75536, connected: 0, disconnected: 0, rate: 0/s
  216. [00:03:35] Current: 75614, peak: 75614, connected: 78, disconnected: 0, rate: 78/s
  217. [00:03:36] Current: 75707, peak: 75707, connected: 93, disconnected: 0, rate: 93/s
  218. [00:03:37] Current: 75708, peak: 75708, connected: 1, disconnected: 0, rate: 1/s
  219. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  220. Heartbeat took longer than "00:00:01" at "06/10/2019 03:28:09 +00:00".
  221. [00:03:39] Current: 75772, peak: 75772, connected: 64, disconnected: 0, rate: 64/s
  222. [00:03:42] Current: 75836, peak: 75836, connected: 64, disconnected: 0, rate: 64/s
  223. [00:03:43] Current: 75836, peak: 75836, connected: 0, disconnected: 0, rate: 0/s
  224. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  225. Heartbeat took longer than "00:00:01" at "06/10/2019 03:28:15 +00:00".
  226. [00:03:44] Current: 75952, peak: 75952, connected: 116, disconnected: 0, rate: 116/s
  227. [00:03:45] Current: 76157, peak: 76157, connected: 205, disconnected: 0, rate: 205/s
  228. [00:03:46] Current: 76400, peak: 76400, connected: 243, disconnected: 0, rate: 243/s
  229. [00:03:47] Current: 76739, peak: 76739, connected: 339, disconnected: 0, rate: 339/s
  230. [00:03:48] Current: 77097, peak: 77097, connected: 358, disconnected: 0, rate: 358/s
  231. [00:03:51] Current: 77177, peak: 77177, connected: 80, disconnected: 0, rate: 80/s
  232. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  233. Heartbeat took longer than "00:00:01" at "06/10/2019 03:28:22 +00:00".
  234. [00:03:52] Current: 77243, peak: 77243, connected: 66, disconnected: 0, rate: 66/s
  235. [00:03:53] Current: 77445, peak: 77445, connected: 202, disconnected: 0, rate: 202/s
  236. [00:03:54] Current: 77726, peak: 77726, connected: 281, disconnected: 0, rate: 281/s
  237. [00:03:55] Current: 78046, peak: 78046, connected: 320, disconnected: 0, rate: 320/s
  238. [00:03:56] Current: 78214, peak: 78214, connected: 168, disconnected: 0, rate: 168/s
  239. [00:03:57] Current: 78273, peak: 78273, connected: 59, disconnected: 0, rate: 59/s
  240. [00:03:59] Current: 78281, peak: 78281, connected: 8, disconnected: 0, rate: 8/s
  241. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  242. Heartbeat took longer than "00:00:01" at "06/10/2019 03:28:31 +00:00".
  243. [00:04:01] Current: 78397, peak: 78397, connected: 116, disconnected: 0, rate: 116/s
  244. [00:04:02] Current: 78453, peak: 78453, connected: 56, disconnected: 0, rate: 56/s
  245. [00:04:03] Current: 78581, peak: 78581, connected: 128, disconnected: 0, rate: 128/s
  246. [00:04:04] Current: 78604, peak: 78604, connected: 23, disconnected: 0, rate: 23/s
  247. [00:04:05] Current: 78850, peak: 78850, connected: 246, disconnected: 0, rate: 246/s
  248. [00:04:06] Current: 79219, peak: 79219, connected: 369, disconnected: 0, rate: 369/s
  249. [00:04:07] Current: 79669, peak: 79669, connected: 450, disconnected: 0, rate: 450/s
  250. [00:04:09] Current: 79794, peak: 79794, connected: 125, disconnected: 0, rate: 125/s
  251. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  252. Heartbeat took longer than "00:00:01" at "06/10/2019 03:28:40 +00:00".
  253. [00:04:10] Current: 79822, peak: 79822, connected: 28, disconnected: 0, rate: 28/s
  254. [00:04:11] Current: 79851, peak: 79851, connected: 29, disconnected: 0, rate: 29/s
  255. [00:04:12] Current: 79891, peak: 79891, connected: 40, disconnected: 0, rate: 40/s
  256. [00:04:13] Current: 80065, peak: 80065, connected: 174, disconnected: 0, rate: 174/s
  257. [00:04:14] Current: 80409, peak: 80409, connected: 344, disconnected: 0, rate: 344/s
  258. [00:04:15] Current: 80966, peak: 80966, connected: 557, disconnected: 0, rate: 557/s
  259. [00:04:16] Current: 81021, peak: 81021, connected: 55, disconnected: 0, rate: 55/s
  260. [00:04:19] Current: 81021, peak: 81021, connected: 0, disconnected: 0, rate: 0/s
  261. [00:04:20] Current: 81172, peak: 81172, connected: 151, disconnected: 0, rate: 151/s
  262. [00:04:21] Current: 81289, peak: 81289, connected: 117, disconnected: 0, rate: 117/s
  263. [00:04:22] Current: 81299, peak: 81299, connected: 10, disconnected: 0, rate: 10/s
  264. [00:04:23] Current: 81321, peak: 81321, connected: 22, disconnected: 0, rate: 22/s
  265. [00:04:24] Current: 81321, peak: 81321, connected: 0, disconnected: 0, rate: 0/s
  266. [00:04:25] Current: 81615, peak: 81615, connected: 294, disconnected: 0, rate: 294/s
  267. [00:04:28] Current: 81617, peak: 81617, connected: 2, disconnected: 0, rate: 2/s
  268. [00:04:29] Current: 81618, peak: 81618, connected: 1, disconnected: 0, rate: 1/s
  269. [00:04:30] Current: 81759, peak: 81759, connected: 141, disconnected: 0, rate: 141/s
  270. [00:04:31] Current: 81825, peak: 81825, connected: 66, disconnected: 0, rate: 66/s
  271. [00:04:32] Current: 81917, peak: 81917, connected: 92, disconnected: 0, rate: 92/s
  272. [00:04:33] Current: 82141, peak: 82141, connected: 224, disconnected: 0, rate: 224/s
  273. [00:04:34] Current: 82755, peak: 82755, connected: 614, disconnected: 0, rate: 614/s
  274. [00:04:37] Current: 83115, peak: 83115, connected: 360, disconnected: 0, rate: 360/s
  275. [00:04:39] Current: 83135, peak: 83135, connected: 20, disconnected: 0, rate: 20/s
  276. [00:04:40] Current: 83139, peak: 83139, connected: 4, disconnected: 0, rate: 4/s
  277. [00:04:41] Current: 83195, peak: 83195, connected: 56, disconnected: 0, rate: 56/s
  278. [00:04:42] Current: 83317, peak: 83317, connected: 122, disconnected: 0, rate: 122/s
  279. [00:04:43] Current: 83414, peak: 83414, connected: 97, disconnected: 0, rate: 97/s
  280. [00:04:44] Current: 83415, peak: 83415, connected: 1, disconnected: 0, rate: 1/s
  281. [00:04:47] Current: 83492, peak: 83492, connected: 77, disconnected: 0, rate: 77/s
  282. [00:04:48] Current: 83492, peak: 83492, connected: 0, disconnected: 0, rate: 0/s
  283. [00:04:49] Current: 83691, peak: 83691, connected: 199, disconnected: 0, rate: 199/s
  284. [00:04:50] Current: 83715, peak: 83715, connected: 24, disconnected: 0, rate: 24/s
  285. [00:04:51] Current: 83961, peak: 83961, connected: 246, disconnected: 0, rate: 246/s
  286. [00:04:52] Current: 83984, peak: 83984, connected: 23, disconnected: 0, rate: 23/s
  287. [00:04:53] Current: 84165, peak: 84165, connected: 181, disconnected: 0, rate: 181/s
  288. [00:04:55] Current: 84417, peak: 84417, connected: 252, disconnected: 0, rate: 252/s
  289. [00:04:57] Current: 84562, peak: 84562, connected: 145, disconnected: 0, rate: 145/s
  290. [00:04:58] Current: 84593, peak: 84593, connected: 31, disconnected: 0, rate: 31/s
  291. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  292. Heartbeat took longer than "00:00:01" at "06/10/2019 03:29:30 +00:00".
  293. [00:04:59] Current: 84697, peak: 84697, connected: 104, disconnected: 0, rate: 104/s
  294. [00:05:00] Current: 84781, peak: 84781, connected: 84, disconnected: 0, rate: 84/s
  295. [00:05:01] Current: 85311, peak: 85311, connected: 530, disconnected: 0, rate: 530/s
  296. [00:05:04] Current: 85507, peak: 85507, connected: 196, disconnected: 0, rate: 196/s
  297. [00:05:05] Current: 85560, peak: 85560, connected: 53, disconnected: 0, rate: 53/s
  298. [00:05:06] Current: 85775, peak: 85775, connected: 215, disconnected: 0, rate: 215/s
  299. [00:05:07] Current: 85801, peak: 85801, connected: 26, disconnected: 0, rate: 26/s
  300. [00:05:08] Current: 85801, peak: 85801, connected: 0, disconnected: 0, rate: 0/s
  301. [00:05:09] Current: 85860, peak: 85860, connected: 59, disconnected: 0, rate: 59/s
  302. [00:05:10] Current: 86000, peak: 86000, connected: 140, disconnected: 0, rate: 140/s
  303. [00:05:13] Current: 86115, peak: 86115, connected: 115, disconnected: 0, rate: 115/s
  304. [00:05:14] Current: 86146, peak: 86146, connected: 31, disconnected: 0, rate: 31/s
  305. [00:05:15] Current: 86160, peak: 86160, connected: 14, disconnected: 0, rate: 14/s
  306. [00:05:16] Current: 86160, peak: 86160, connected: 0, disconnected: 0, rate: 0/s
  307. [00:05:17] Current: 86200, peak: 86200, connected: 40, disconnected: 0, rate: 40/s
  308. [00:05:18] Current: 86200, peak: 86200, connected: 0, disconnected: 0, rate: 0/s
  309. [00:05:20] Current: 86372, peak: 86372, connected: 172, disconnected: 0, rate: 172/s
  310. [00:05:21] Current: 86405, peak: 86405, connected: 33, disconnected: 0, rate: 33/s
  311. [00:05:24] Current: 86456, peak: 86456, connected: 51, disconnected: 0, rate: 51/s
  312. [00:05:25] Current: 86460, peak: 86460, connected: 4, disconnected: 0, rate: 4/s
  313. [00:05:26] Current: 86460, peak: 86460, connected: 0, disconnected: 0, rate: 0/s
  314. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  315. Heartbeat took longer than "00:00:01" at "06/10/2019 03:29:58 +00:00".
  316. [00:05:27] Current: 86575, peak: 86575, connected: 115, disconnected: 0, rate: 115/s
  317. [00:05:28] Current: 86647, peak: 86647, connected: 72, disconnected: 0, rate: 72/s
  318. [00:05:29] Current: 86746, peak: 86746, connected: 99, disconnected: 0, rate: 99/s
  319. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  320. Heartbeat took longer than "00:00:01" at "06/10/2019 03:30:02 +00:00".
  321. [00:05:31] Current: 86746, peak: 86746, connected: 0, disconnected: 0, rate: 0/s
  322. [00:05:32] Current: 86746, peak: 86746, connected: 0, disconnected: 0, rate: 0/s
  323. [00:05:33] Current: 86760, peak: 86760, connected: 14, disconnected: 0, rate: 14/s
  324. [00:05:35] Current: 86817, peak: 86817, connected: 57, disconnected: 0, rate: 57/s
  325. [00:05:36] Current: 86987, peak: 86987, connected: 170, disconnected: 0, rate: 170/s
  326. [00:05:37] Current: 87218, peak: 87218, connected: 231, disconnected: 0, rate: 231/s
  327. [00:05:38] Current: 87883, peak: 87883, connected: 665, disconnected: 0, rate: 665/s
  328. [00:05:40] Current: 88238, peak: 88238, connected: 355, disconnected: 0, rate: 355/s
  329. [00:05:42] Current: 88303, peak: 88303, connected: 65, disconnected: 0, rate: 65/s
  330. [00:05:43] Current: 88303, peak: 88303, connected: 0, disconnected: 0, rate: 0/s
  331. [00:05:44] Current: 88362, peak: 88362, connected: 59, disconnected: 0, rate: 59/s
  332. [00:05:45] Current: 88424, peak: 88424, connected: 62, disconnected: 0, rate: 62/s
  333. [00:05:46] Current: 88492, peak: 88492, connected: 68, disconnected: 0, rate: 68/s
  334. [00:05:48] Current: 88561, peak: 88561, connected: 69, disconnected: 0, rate: 69/s
  335. [00:05:49] Current: 88563, peak: 88563, connected: 2, disconnected: 0, rate: 2/s
  336. [00:05:50] Current: 88611, peak: 88611, connected: 48, disconnected: 0, rate: 48/s
  337. [00:05:52] Current: 88662, peak: 88662, connected: 51, disconnected: 0, rate: 51/s
  338. [00:05:53] Current: 88691, peak: 88691, connected: 29, disconnected: 0, rate: 29/s
  339. [00:05:54] Current: 88691, peak: 88691, connected: 0, disconnected: 0, rate: 0/s
  340. [00:05:55] Current: 88792, peak: 88792, connected: 101, disconnected: 0, rate: 101/s
  341. [00:05:56] Current: 88800, peak: 88800, connected: 8, disconnected: 0, rate: 8/s
  342. [00:05:57] Current: 88800, peak: 88800, connected: 0, disconnected: 0, rate: 0/s
  343. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  344. Heartbeat took longer than "00:00:01" at "06/10/2019 03:30:29 +00:00".
  345. [00:06:00] Current: 88832, peak: 88832, connected: 32, disconnected: 0, rate: 32/s
  346. [00:06:01] Current: 88832, peak: 88832, connected: 0, disconnected: 0, rate: 0/s
  347. [00:06:02] Current: 88861, peak: 88861, connected: 29, disconnected: 0, rate: 29/s
  348. [00:06:03] Current: 88911, peak: 88911, connected: 50, disconnected: 0, rate: 50/s
  349. [00:06:05] Current: 88911, peak: 88911, connected: 0, disconnected: 0, rate: 0/s
  350. [00:06:06] Current: 88991, peak: 88991, connected: 80, disconnected: 0, rate: 80/s
  351. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  352. Heartbeat took longer than "00:00:01" at "06/10/2019 03:30:38 +00:00".
  353. [00:06:07] Current: 88991, peak: 88991, connected: 0, disconnected: 0, rate: 0/s
  354. [00:06:09] Current: 88991, peak: 88991, connected: 0, disconnected: 0, rate: 0/s
  355. [00:06:10] Current: 89040, peak: 89040, connected: 49, disconnected: 0, rate: 49/s
  356. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  357. Heartbeat took longer than "00:00:01" at "06/10/2019 03:30:42 +00:00".
  358. [00:06:11] Current: 89132, peak: 89132, connected: 92, disconnected: 0, rate: 92/s
  359. [00:06:13] Current: 89161, peak: 89161, connected: 29, disconnected: 0, rate: 29/s
  360. [00:06:15] Current: 89172, peak: 89172, connected: 11, disconnected: 0, rate: 11/s
  361. [00:06:18] Current: 89291, peak: 89291, connected: 119, disconnected: 0, rate: 119/s
  362. [00:06:19] Current: 89337, peak: 89337, connected: 46, disconnected: 0, rate: 46/s
  363. [00:06:20] Current: 89337, peak: 89337, connected: 0, disconnected: 0, rate: 0/s
  364. [00:06:21] Current: 89371, peak: 89371, connected: 34, disconnected: 0, rate: 34/s
  365. [00:06:23] Current: 89400, peak: 89400, connected: 29, disconnected: 0, rate: 29/s
  366. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  367. Heartbeat took longer than "00:00:01" at "06/10/2019 03:30:55 +00:00".
  368. [00:06:24] Current: 89448, peak: 89448, connected: 48, disconnected: 0, rate: 48/s
  369. [00:06:25] Current: 89467, peak: 89467, connected: 19, disconnected: 0, rate: 19/s
  370. [00:06:26] Current: 89511, peak: 89511, connected: 44, disconnected: 0, rate: 44/s
  371. [00:06:27] Current: 89636, peak: 89636, connected: 125, disconnected: 0, rate: 125/s
  372. [00:06:28] Current: 89678, peak: 89678, connected: 42, disconnected: 0, rate: 42/s
  373. [00:06:29] Current: 89700, peak: 89700, connected: 22, disconnected: 0, rate: 22/s
  374. [00:06:30] Current: 90074, peak: 90074, connected: 374, disconnected: 0, rate: 374/s
  375. [00:06:33] Current: 90184, peak: 90184, connected: 110, disconnected: 0, rate: 110/s
  376. [00:06:34] Current: 90191, peak: 90191, connected: 7, disconnected: 0, rate: 7/s
  377. [00:06:35] Current: 90263, peak: 90263, connected: 72, disconnected: 0, rate: 72/s
  378. [00:06:36] Current: 90272, peak: 90272, connected: 9, disconnected: 0, rate: 9/s
  379. [00:06:37] Current: 90344, peak: 90344, connected: 72, disconnected: 0, rate: 72/s
  380. [00:06:38] Current: 90367, peak: 90367, connected: 23, disconnected: 0, rate: 23/s
  381. [00:06:39] Current: 90430, peak: 90430, connected: 63, disconnected: 0, rate: 63/s
  382. [00:06:40] Current: 90562, peak: 90562, connected: 132, disconnected: 0, rate: 132/s
  383. [00:06:42] Current: 90600, peak: 90600, connected: 38, disconnected: 0, rate: 38/s
  384. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  385. Heartbeat took longer than "00:00:01" at "06/10/2019 03:31:14 +00:00".
  386. [00:06:43] Current: 90675, peak: 90675, connected: 75, disconnected: 0, rate: 75/s
  387. [00:06:44] Current: 90691, peak: 90691, connected: 16, disconnected: 0, rate: 16/s
  388. [00:06:46] Current: 90784, peak: 90784, connected: 93, disconnected: 0, rate: 93/s
  389. [00:06:47] Current: 90863, peak: 90863, connected: 79, disconnected: 0, rate: 79/s
  390. [00:06:48] Current: 90914, peak: 90914, connected: 51, disconnected: 0, rate: 51/s
  391. [00:06:51] Current: 91029, peak: 91029, connected: 115, disconnected: 0, rate: 115/s
  392. [00:06:52] Current: 91041, peak: 91041, connected: 12, disconnected: 0, rate: 12/s
  393. [00:06:53] Current: 91041, peak: 91041, connected: 0, disconnected: 0, rate: 0/s
  394. [00:06:54] Current: 91132, peak: 91132, connected: 91, disconnected: 0, rate: 91/s
  395. [00:06:55] Current: 91162, peak: 91162, connected: 30, disconnected: 0, rate: 30/s
  396. [00:06:56] Current: 91200, peak: 91200, connected: 38, disconnected: 0, rate: 38/s
  397. [00:06:57] Current: 91456, peak: 91456, connected: 256, disconnected: 0, rate: 256/s
  398. [00:07:00] Current: 91597, peak: 91597, connected: 141, disconnected: 0, rate: 141/s
  399. [00:07:01] Current: 91653, peak: 91653, connected: 56, disconnected: 0, rate: 56/s
  400. [00:07:03] Current: 91653, peak: 91653, connected: 0, disconnected: 0, rate: 0/s
  401. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  402. Heartbeat took longer than "00:00:01" at "06/10/2019 03:31:35 +00:00".
  403. [00:07:04] Current: 91728, peak: 91728, connected: 75, disconnected: 0, rate: 75/s
  404. [00:07:05] Current: 91728, peak: 91728, connected: 0, disconnected: 0, rate: 0/s
  405. [00:07:06] Current: 91772, peak: 91772, connected: 44, disconnected: 0, rate: 44/s
  406. [00:07:09] Current: 91809, peak: 91809, connected: 37, disconnected: 0, rate: 37/s
  407. [00:07:10] Current: 91869, peak: 91869, connected: 60, disconnected: 0, rate: 60/s
  408. [00:07:11] Current: 91869, peak: 91869, connected: 0, disconnected: 0, rate: 0/s
  409. [00:07:12] Current: 91948, peak: 91948, connected: 79, disconnected: 0, rate: 79/s
  410. [00:07:13] Current: 92037, peak: 92037, connected: 89, disconnected: 0, rate: 89/s
  411. [00:07:14] Current: 92247, peak: 92247, connected: 210, disconnected: 0, rate: 210/s
  412. [00:07:15] Current: 92410, peak: 92410, connected: 163, disconnected: 0, rate: 163/s
  413. [00:07:16] Current: 92410, peak: 92410, connected: 0, disconnected: 0, rate: 0/s
  414. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  415. Heartbeat took longer than "00:00:01" at "06/10/2019 03:31:48 +00:00".
  416. [00:07:18] Current: 92496, peak: 92496, connected: 86, disconnected: 0, rate: 86/s
  417. [00:07:19] Current: 92500, peak: 92500, connected: 4, disconnected: 0, rate: 4/s
  418. [00:07:21] Current: 92513, peak: 92513, connected: 13, disconnected: 0, rate: 13/s
  419. [00:07:22] Current: 92692, peak: 92692, connected: 179, disconnected: 0, rate: 179/s
  420. [00:07:23] Current: 92760, peak: 92760, connected: 68, disconnected: 0, rate: 68/s
  421. [00:07:25] Current: 92813, peak: 92813, connected: 53, disconnected: 0, rate: 53/s
  422. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  423. Heartbeat took longer than "00:00:01" at "06/10/2019 03:31:56 +00:00".
  424. [00:07:27] Current: 92941, peak: 92941, connected: 128, disconnected: 0, rate: 128/s
  425. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  426. Heartbeat took longer than "00:00:01" at "06/10/2019 03:31:59 +00:00".
  427. [00:07:28] Current: 92941, peak: 92941, connected: 0, disconnected: 0, rate: 0/s
  428. [00:07:30] Current: 93001, peak: 93001, connected: 60, disconnected: 0, rate: 60/s
  429. [00:07:31] Current: 93071, peak: 93071, connected: 70, disconnected: 0, rate: 70/s
  430. [00:07:32] Current: 93181, peak: 93181, connected: 110, disconnected: 0, rate: 110/s
  431. [00:07:35] Current: 93248, peak: 93248, connected: 67, disconnected: 0, rate: 67/s
  432. [00:07:36] Current: 93248, peak: 93248, connected: 0, disconnected: 0, rate: 0/s
  433. [00:07:38] Current: 93253, peak: 93253, connected: 5, disconnected: 0, rate: 5/s
  434. [00:07:39] Current: 93360, peak: 93360, connected: 107, disconnected: 0, rate: 107/s
  435. [00:07:40] Current: 93371, peak: 93371, connected: 11, disconnected: 0, rate: 11/s
  436. [00:07:42] Current: 93481, peak: 93481, connected: 110, disconnected: 0, rate: 110/s
  437. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  438. Heartbeat took longer than "00:00:01" at "06/10/2019 03:32:14 +00:00".
  439. [00:07:44] Current: 93541, peak: 93541, connected: 60, disconnected: 0, rate: 60/s
  440. [00:07:45] Current: 93543, peak: 93543, connected: 2, disconnected: 0, rate: 2/s
  441. [00:07:47] Current: 93550, peak: 93550, connected: 7, disconnected: 0, rate: 7/s
  442. [00:07:48] Current: 93610, peak: 93610, connected: 60, disconnected: 0, rate: 60/s
  443. [00:07:49] Current: 93660, peak: 93660, connected: 50, disconnected: 0, rate: 50/s
  444. [00:07:52] Current: 93671, peak: 93671, connected: 11, disconnected: 0, rate: 11/s
  445. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  446. Heartbeat took longer than "00:00:01" at "06/10/2019 03:32:23 +00:00".
  447. [00:07:54] Current: 93750, peak: 93750, connected: 79, disconnected: 0, rate: 79/s
  448. [00:07:55] Current: 93750, peak: 93750, connected: 0, disconnected: 0, rate: 0/s
  449. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  450. Heartbeat took longer than "00:00:01" at "06/10/2019 03:32:27 +00:00".
  451. [00:07:57] Current: 93831, peak: 93831, connected: 81, disconnected: 0, rate: 81/s
  452. [00:07:58] Current: 93831, peak: 93831, connected: 0, disconnected: 0, rate: 0/s
  453. [00:08:01] Current: 93960, peak: 93960, connected: 129, disconnected: 0, rate: 129/s
  454. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  455. Heartbeat took longer than "00:00:01" at "06/10/2019 03:32:32 +00:00".
  456. [00:08:02] Current: 93960, peak: 93960, connected: 0, disconnected: 0, rate: 0/s
  457. [00:08:03] Current: 93960, peak: 93960, connected: 0, disconnected: 0, rate: 0/s
  458. [00:08:04] Current: 94050, peak: 94050, connected: 90, disconnected: 0, rate: 90/s
  459. [00:08:05] Current: 94050, peak: 94050, connected: 0, disconnected: 0, rate: 0/s
  460. [00:08:06] Current: 94101, peak: 94101, connected: 51, disconnected: 0, rate: 51/s
  461. [00:08:09] Current: 94101, peak: 94101, connected: 0, disconnected: 0, rate: 0/s
  462. [00:08:11] Current: 94209, peak: 94209, connected: 108, disconnected: 0, rate: 108/s
  463. [00:08:12] Current: 94209, peak: 94209, connected: 0, disconnected: 0, rate: 0/s
  464. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  465. Heartbeat took longer than "00:00:01" at "06/10/2019 03:32:43 +00:00".
  466. [00:08:13] Current: 94210, peak: 94210, connected: 1, disconnected: 0, rate: 1/s
  467. [00:08:15] Current: 94339, peak: 94339, connected: 129, disconnected: 0, rate: 129/s
  468. [00:08:16] Current: 94350, peak: 94350, connected: 11, disconnected: 0, rate: 11/s
  469. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  470. Heartbeat took longer than "00:00:01" at "06/10/2019 03:32:47 +00:00".
  471. [00:08:18] Current: 94400, peak: 94400, connected: 50, disconnected: 0, rate: 50/s
  472. [00:08:19] Current: 94401, peak: 94401, connected: 1, disconnected: 0, rate: 1/s
  473. [00:08:20] Current: 94412, peak: 94412, connected: 11, disconnected: 0, rate: 11/s
  474. [00:08:23] Current: 94509, peak: 94509, connected: 97, disconnected: 0, rate: 97/s
  475. [00:08:24] Current: 94509, peak: 94509, connected: 0, disconnected: 0, rate: 0/s
  476. [00:08:27] Current: 94510, peak: 94510, connected: 1, disconnected: 0, rate: 1/s
  477. [00:08:29] Current: 94560, peak: 94560, connected: 50, disconnected: 0, rate: 50/s
  478. [00:08:30] Current: 94603, peak: 94603, connected: 43, disconnected: 0, rate: 43/s
  479. [00:08:31] Current: 94603, peak: 94603, connected: 0, disconnected: 0, rate: 0/s
  480. [00:08:36] Current: 94642, peak: 94642, connected: 39, disconnected: 0, rate: 39/s
  481. [00:08:37] Current: 94675, peak: 94675, connected: 33, disconnected: 0, rate: 33/s
  482. [00:08:38] Current: 94675, peak: 94675, connected: 0, disconnected: 0, rate: 0/s
  483. [00:08:39] Current: 94700, peak: 94700, connected: 25, disconnected: 0, rate: 25/s
  484. [00:08:40] Current: 94700, peak: 94700, connected: 0, disconnected: 0, rate: 0/s
  485. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  486. Heartbeat took longer than "00:00:01" at "06/10/2019 03:33:11 +00:00".
  487. [00:08:41] Current: 94700, peak: 94700, connected: 0, disconnected: 0, rate: 0/s
  488. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  489. Heartbeat took longer than "00:00:01" at "06/10/2019 03:33:12 +00:00".
  490. [00:08:42] Current: 94789, peak: 94789, connected: 89, disconnected: 0, rate: 89/s
  491. [00:08:46] Current: 94789, peak: 94789, connected: 0, disconnected: 0, rate: 0/s
  492. [00:08:47] Current: 94849, peak: 94849, connected: 60, disconnected: 0, rate: 60/s
  493. [00:08:49] Current: 94849, peak: 94849, connected: 0, disconnected: 0, rate: 0/s
  494. [00:08:50] Current: 94849, peak: 94849, connected: 0, disconnected: 0, rate: 0/s
  495. [00:08:52] Current: 94849, peak: 94849, connected: 0, disconnected: 0, rate: 0/s
  496. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  497. Heartbeat took longer than "00:00:01" at "06/10/2019 03:33:24 +00:00".
  498. [00:08:53] Current: 94849, peak: 94849, connected: 0, disconnected: 0, rate: 0/s
  499. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  500. Heartbeat took longer than "00:00:01" at "06/10/2019 03:33:24 +00:00".
  501. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  502. Heartbeat took longer than "00:00:01" at "06/10/2019 03:33:25 +00:00".
  503. [00:08:58] Current: 94903, peak: 94903, connected: 54, disconnected: 0, rate: 54/s
  504. [00:08:59] Current: 94903, peak: 94903, connected: 0, disconnected: 0, rate: 0/s
  505. [00:09:01] Current: 94903, peak: 94903, connected: 0, disconnected: 0, rate: 0/s
  506. [00:09:03] Current: 94903, peak: 94903, connected: 0, disconnected: 0, rate: 0/s
  507. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  508. Heartbeat took longer than "00:00:01" at "06/10/2019 03:33:34 +00:00".
  509. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  510. Heartbeat took longer than "00:00:01" at "06/10/2019 03:33:35 +00:00".
  511. [00:09:07] Current: 94942, peak: 94942, connected: 39, disconnected: 0, rate: 39/s
  512. [00:09:08] Current: 94941, peak: 94942, connected: 0, disconnected: 1, rate: -1/s
  513. [00:09:10] Current: 94941, peak: 94942, connected: 0, disconnected: 0, rate: 0/s
  514. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  515. Heartbeat took longer than "00:00:01" at "06/10/2019 03:33:41 +00:00".
  516. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  517. Heartbeat took longer than "00:00:01" at "06/10/2019 03:33:46 +00:00".
  518. [00:09:15] Current: 94981, peak: 94981, connected: 40, disconnected: 0, rate: 40/s
  519. [00:09:16] Current: 94992, peak: 94992, connected: 11, disconnected: 0, rate: 11/s
  520. [00:09:17] Current: 94992, peak: 94992, connected: 0, disconnected: 0, rate: 0/s
  521. [00:09:18] Current: 94992, peak: 94992, connected: 0, disconnected: 0, rate: 0/s
  522. [00:09:20] Current: 94992, peak: 94992, connected: 0, disconnected: 0, rate: 0/s
  523. [00:09:25] Current: 95084, peak: 95084, connected: 92, disconnected: 0, rate: 92/s
  524. [00:09:26] Current: 95054, peak: 95084, connected: 0, disconnected: 30, rate: -30/s
  525. [00:09:29] Current: 95045, peak: 95084, connected: 0, disconnected: 9, rate: -9/s
  526. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  527. Heartbeat took longer than "00:00:01" at "06/10/2019 03:34:01 +00:00".
  528. [00:09:36] Current: 95098, peak: 95105, connected: 93, disconnected: 40, rate: 53/s
  529. [00:09:37] Current: 95098, peak: 95105, connected: 0, disconnected: 0, rate: 0/s
  530. [00:09:40] Current: 95098, peak: 95105, connected: 0, disconnected: 0, rate: 0/s
  531. [00:09:48] Current: 95146, peak: 95146, connected: 59, disconnected: 11, rate: 48/s
  532. [00:09:49] Current: 95146, peak: 95146, connected: 0, disconnected: 0, rate: 0/s
  533. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  534. Heartbeat took longer than "00:00:01" at "06/10/2019 03:34:21 +00:00".
  535. [00:09:50] Current: 95146, peak: 95146, connected: 0, disconnected: 0, rate: 0/s
  536. [00:09:51] Current: 95054, peak: 95146, connected: 0, disconnected: 92, rate: -92/s
  537. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  538. Heartbeat took longer than "00:00:01" at "06/10/2019 03:34:23 +00:00".
  539. [00:09:52] Current: 95054, peak: 95146, connected: 0, disconnected: 0, rate: 0/s
  540. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  541. Heartbeat took longer than "00:00:01" at "06/10/2019 03:34:24 +00:00".
  542. [00:09:53] Current: 95054, peak: 95146, connected: 0, disconnected: 0, rate: 0/s
  543. [00:10:03] Current: 94968, peak: 95146, connected: 7, disconnected: 93, rate: -86/s
  544. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  545. Heartbeat took longer than "00:00:01" at "06/10/2019 03:34:34 +00:00".
  546. [00:10:04] Current: 94927, peak: 95146, connected: 0, disconnected: 41, rate: -41/s
  547. [00:10:05] Current: 94909, peak: 95146, connected: 0, disconnected: 18, rate: -18/s
  548. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  549. Heartbeat took longer than "00:00:01" at "06/10/2019 03:34:41 +00:00".
  550. [00:10:11] Current: 94998, peak: 95146, connected: 89, disconnected: 0, rate: 89/s
  551. [00:10:12] Current: 94998, peak: 95146, connected: 0, disconnected: 0, rate: 0/s
  552. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  553. Heartbeat took longer than "00:00:01" at "06/10/2019 03:34:48 +00:00".
  554. [00:10:19] Current: 94991, peak: 95146, connected: 0, disconnected: 7, rate: -7/s
  555. [00:10:22] Current: 94991, peak: 95146, connected: 0, disconnected: 0, rate: 0/s
  556. [00:10:34] Current: 95018, peak: 95146, connected: 27, disconnected: 0, rate: 27/s
  557. [00:10:35] Current: 95018, peak: 95146, connected: 0, disconnected: 0, rate: 0/s
  558. [00:10:36] Current: 94929, peak: 95146, connected: 0, disconnected: 89, rate: -89/s
  559. [00:10:37] Current: 94929, peak: 95146, connected: 0, disconnected: 0, rate: 0/s
  560. [00:10:39] Current: 94929, peak: 95146, connected: 0, disconnected: 0, rate: 0/s
  561. [00:10:40] Current: 94929, peak: 95146, connected: 0, disconnected: 0, rate: 0/s
  562. [00:10:42] Current: 94929, peak: 95146, connected: 0, disconnected: 0, rate: 0/s
  563. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  564. Heartbeat took longer than "00:00:01" at "06/10/2019 03:35:13 +00:00".
  565. [00:10:43] Current: 94929, peak: 95146, connected: 0, disconnected: 0, rate: 0/s
  566. [00:10:44] Current: 94929, peak: 95146, connected: 0, disconnected: 0, rate: 0/s
  567. [00:10:45] Current: 94929, peak: 95146, connected: 0, disconnected: 0, rate: 0/s
  568. [00:10:48] Current: 94929, peak: 95146, connected: 0, disconnected: 0, rate: 0/s
  569. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  570. Heartbeat took longer than "00:00:01" at "06/10/2019 03:35:21 +00:00".
  571. [00:10:57] Current: 94168, peak: 95146, connected: 0, disconnected: 761, rate: -761/s
  572. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  573. Heartbeat took longer than "00:00:01" at "06/10/2019 03:35:28 +00:00".
  574. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  575. Heartbeat took longer than "00:00:01" at "06/10/2019 03:35:29 +00:00".
  576. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  577. Failed writing message. Aborting connection.
  578. System.InvalidOperationException: Writing is not allowed after writer was completed.
  579. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  580. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  581. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  582. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  583. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  584. Failed writing message. Aborting connection.
  585. System.InvalidOperationException: Writing is not allowed after writer was completed.
  586. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  587. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  588. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  589. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  590. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  591. Failed writing message. Aborting connection.
  592. System.InvalidOperationException: Writing is not allowed after writer was completed.
  593. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  594. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  595. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  596. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  597. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  598. Failed writing message. Aborting connection.
  599. System.InvalidOperationException: Writing is not allowed after writer was completed.
  600. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  601. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  602. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  603. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  604. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  605. Failed writing message. Aborting connection.
  606. System.InvalidOperationException: Writing is not allowed after writer was completed.
  607. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  608. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  609. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  610. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  611. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  612. Failed writing message. Aborting connection.
  613. System.InvalidOperationException: Writing is not allowed after writer was completed.
  614. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  615. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  616. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  617. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  618. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  619. Failed writing message. Aborting connection.
  620. System.InvalidOperationException: Writing is not allowed after writer was completed.
  621. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  622. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  623. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  624. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  625. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  626. Failed writing message. Aborting connection.
  627. System.InvalidOperationException: Writing is not allowed after writer was completed.
  628. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  629. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  630. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  631. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  632. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  633. Failed writing message. Aborting connection.
  634. System.InvalidOperationException: Writing is not allowed after writer was completed.
  635. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  636. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  637. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  638. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  639. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  640. Failed writing message. Aborting connection.
  641. System.InvalidOperationException: Writing is not allowed after writer was completed.
  642. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  643. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  644. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  645. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  646. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  647. Failed writing message. Aborting connection.
  648. System.InvalidOperationException: Writing is not allowed after writer was completed.
  649. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  650. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  651. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  652. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  653. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  654. Failed writing message. Aborting connection.
  655. System.InvalidOperationException: Writing is not allowed after writer was completed.
  656. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  657. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  658. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  659. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  660. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  661. Failed writing message. Aborting connection.
  662. System.InvalidOperationException: Writing is not allowed after writer was completed.
  663. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  664. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  665. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  666. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  667. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  668. Failed writing message. Aborting connection.
  669. System.InvalidOperationException: Writing is not allowed after writer was completed.
  670. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  671. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  672. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  673. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  674. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  675. Failed writing message. Aborting connection.
  676. System.InvalidOperationException: Writing is not allowed after writer was completed.
  677. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  678. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  679. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  680. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  681. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  682. Failed writing message. Aborting connection.
  683. System.InvalidOperationException: Writing is not allowed after writer was completed.
  684. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  685. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  686. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  687. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  688. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  689. Failed writing message. Aborting connection.
  690. System.InvalidOperationException: Writing is not allowed after writer was completed.
  691. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  692. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  693. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  694. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  695. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  696. Failed writing message. Aborting connection.
  697. System.InvalidOperationException: Writing is not allowed after writer was completed.
  698. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  699. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  700. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  701. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  702. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  703. Failed writing message. Aborting connection.
  704. System.InvalidOperationException: Writing is not allowed after writer was completed.
  705. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  706. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  707. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  708. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  709. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  710. Failed writing message. Aborting connection.
  711. System.InvalidOperationException: Writing is not allowed after writer was completed.
  712. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  713. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  714. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  715. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  716. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  717. Failed writing message. Aborting connection.
  718. System.InvalidOperationException: Writing is not allowed after writer was completed.
  719. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  720. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  721. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  722. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  723. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  724. Failed writing message. Aborting connection.
  725. System.InvalidOperationException: Writing is not allowed after writer was completed.
  726. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  727. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  728. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  729. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  730. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  731. Failed writing message. Aborting connection.
  732. System.InvalidOperationException: Writing is not allowed after writer was completed.
  733. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  734. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  735. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  736. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  737. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  738. Failed writing message. Aborting connection.
  739. System.InvalidOperationException: Writing is not allowed after writer was completed.
  740. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  741. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  742. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  743. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  744. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  745. Failed writing message. Aborting connection.
  746. System.InvalidOperationException: Writing is not allowed after writer was completed.
  747. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  748. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  749. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  750. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  751. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  752. Failed writing message. Aborting connection.
  753. System.InvalidOperationException: Writing is not allowed after writer was completed.
  754. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  755. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  756. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  757. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  758. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  759. Failed writing message. Aborting connection.
  760. System.InvalidOperationException: Writing is not allowed after writer was completed.
  761. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  762. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  763. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  764. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  765. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  766. Failed writing message. Aborting connection.
  767. System.InvalidOperationException: Writing is not allowed after writer was completed.
  768. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  769. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  770. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  771. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  772. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  773. Failed writing message. Aborting connection.
  774. System.InvalidOperationException: Writing is not allowed after writer was completed.
  775. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  776. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  777. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  778. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  779. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  780. Failed writing message. Aborting connection.
  781. System.InvalidOperationException: Writing is not allowed after writer was completed.
  782. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  783. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  784. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  785. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  786. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  787. Failed writing message. Aborting connection.
  788. System.InvalidOperationException: Writing is not allowed after writer was completed.
  789. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  790. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  791. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  792. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  793. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  794. Failed writing message. Aborting connection.
  795. System.InvalidOperationException: Writing is not allowed after writer was completed.
  796. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  797. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  798. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  799. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  800. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  801. Failed writing message. Aborting connection.
  802. System.InvalidOperationException: Writing is not allowed after writer was completed.
  803. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  804. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  805. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  806. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  807. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  808. Failed writing message. Aborting connection.
  809. System.InvalidOperationException: Writing is not allowed after writer was completed.
  810. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  811. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  812. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  813. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  814. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  815. Failed writing message. Aborting connection.
  816. System.InvalidOperationException: Writing is not allowed after writer was completed.
  817. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  818. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  819. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  820. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  821. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  822. Failed writing message. Aborting connection.
  823. System.InvalidOperationException: Writing is not allowed after writer was completed.
  824. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  825. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  826. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  827. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  828. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  829. Failed writing message. Aborting connection.
  830. System.InvalidOperationException: Writing is not allowed after writer was completed.
  831. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  832. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  833. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  834. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  835. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  836. Failed writing message. Aborting connection.
  837. System.InvalidOperationException: Writing is not allowed after writer was completed.
  838. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  839. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  840. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  841. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  842. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  843. Failed writing message. Aborting connection.
  844. System.InvalidOperationException: Writing is not allowed after writer was completed.
  845. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  846. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  847. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  848. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  849. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  850. Failed writing message. Aborting connection.
  851. System.InvalidOperationException: Writing is not allowed after writer was completed.
  852. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  853. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  854. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  855. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  856. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  857. Failed writing message. Aborting connection.
  858. System.InvalidOperationException: Writing is not allowed after writer was completed.
  859. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  860. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  861. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  862. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  863. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  864. Failed writing message. Aborting connection.
  865. System.InvalidOperationException: Writing is not allowed after writer was completed.
  866. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  867. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  868. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  869. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  870. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  871. Failed writing message. Aborting connection.
  872. System.InvalidOperationException: Writing is not allowed after writer was completed.
  873. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  874. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  875. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  876. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  877. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  878. Failed writing message. Aborting connection.
  879. System.InvalidOperationException: Writing is not allowed after writer was completed.
  880. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  881. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  882. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  883. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  884. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  885. Failed writing message. Aborting connection.
  886. System.InvalidOperationException: Writing is not allowed after writer was completed.
  887. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  888. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  889. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  890. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  891. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  892. Failed writing message. Aborting connection.
  893. System.InvalidOperationException: Writing is not allowed after writer was completed.
  894. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  895. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  896. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  897. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  898. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  899. Failed writing message. Aborting connection.
  900. System.InvalidOperationException: Writing is not allowed after writer was completed.
  901. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  902. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  903. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  904. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  905. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  906. Failed writing message. Aborting connection.
  907. System.InvalidOperationException: Writing is not allowed after writer was completed.
  908. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  909. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  910. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  911. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  912. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  913. Failed writing message. Aborting connection.
  914. System.InvalidOperationException: Writing is not allowed after writer was completed.
  915. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  916. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  917. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  918. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  919. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  920. Failed writing message. Aborting connection.
  921. System.InvalidOperationException: Writing is not allowed after writer was completed.
  922. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  923. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  924. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  925. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  926. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  927. Failed writing message. Aborting connection.
  928. System.InvalidOperationException: Writing is not allowed after writer was completed.
  929. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  930. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  931. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  932. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  933. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  934. Failed writing message. Aborting connection.
  935. System.InvalidOperationException: Writing is not allowed after writer was completed.
  936. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  937. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  938. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  939. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  940. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  941. Failed writing message. Aborting connection.
  942. System.InvalidOperationException: Writing is not allowed after writer was completed.
  943. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  944. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  945. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  946. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  947. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  948. Failed writing message. Aborting connection.
  949. System.InvalidOperationException: Writing is not allowed after writer was completed.
  950. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  951. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  952. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  953. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  954. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  955. Failed writing message. Aborting connection.
  956. System.InvalidOperationException: Writing is not allowed after writer was completed.
  957. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  958. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  959. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  960. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  961. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  962. Failed writing message. Aborting connection.
  963. System.InvalidOperationException: Writing is not allowed after writer was completed.
  964. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  965. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  966. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  967. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  968. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  969. Failed writing message. Aborting connection.
  970. System.InvalidOperationException: Writing is not allowed after writer was completed.
  971. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  972. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  973. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  974. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  975. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  976. Failed writing message. Aborting connection.
  977. System.InvalidOperationException: Writing is not allowed after writer was completed.
  978. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  979. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  980. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  981. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  982. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  983. Failed writing message. Aborting connection.
  984. System.InvalidOperationException: Writing is not allowed after writer was completed.
  985. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  986. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  987. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  988. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  989. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  990. Failed writing message. Aborting connection.
  991. System.InvalidOperationException: Writing is not allowed after writer was completed.
  992. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  993. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  994. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  995. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  996. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  997. Failed writing message. Aborting connection.
  998. System.InvalidOperationException: Writing is not allowed after writer was completed.
  999. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1000. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1001. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1002. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1003. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1004. Failed writing message. Aborting connection.
  1005. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1006. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1007. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1008. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1009. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1010. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1011. Failed writing message. Aborting connection.
  1012. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1013. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1014. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1015. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1016. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1017. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1018. Failed writing message. Aborting connection.
  1019. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1020. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1021. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1022. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1023. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1024. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1025. Failed writing message. Aborting connection.
  1026. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1027. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1028. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1029. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1030. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1031. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1032. Failed writing message. Aborting connection.
  1033. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1034. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1035. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1036. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1037. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1038. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1039. Failed writing message. Aborting connection.
  1040. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1041. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1042. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1043. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1044. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1045. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1046. Failed writing message. Aborting connection.
  1047. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1048. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1049. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1050. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1051. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1052. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1053. Failed writing message. Aborting connection.
  1054. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1055. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1056. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1057. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1058. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1059. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1060. Failed writing message. Aborting connection.
  1061. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1062. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1063. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1064. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1065. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1066. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1067. Failed writing message. Aborting connection.
  1068. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1069. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1070. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1071. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1072. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1073. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1074. Failed writing message. Aborting connection.
  1075. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1076. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1077. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1078. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1079. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1080. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1081. Failed writing message. Aborting connection.
  1082. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1083. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1084. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1085. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1086. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1087. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1088. Failed writing message. Aborting connection.
  1089. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1090. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1091. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1092. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1093. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1094. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1095. Failed writing message. Aborting connection.
  1096. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1097. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1098. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1099. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1100. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1101. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1102. Failed writing message. Aborting connection.
  1103. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1104. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1105. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1106. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1107. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1108. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1109. Failed writing message. Aborting connection.
  1110. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1111. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1112. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1113. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1114. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1115. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1116. Failed writing message. Aborting connection.
  1117. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1118. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1119. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1120. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1121. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1122. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1123. Failed writing message. Aborting connection.
  1124. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1125. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1126. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1127. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1128. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1129. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1130. Failed writing message. Aborting connection.
  1131. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1132. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1133. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1134. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1135. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1136. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1137. Failed writing message. Aborting connection.
  1138. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1139. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1140. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1141. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1142. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1143. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1144. Failed writing message. Aborting connection.
  1145. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1146. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1147. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1148. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1149. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1150. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1151. Failed writing message. Aborting connection.
  1152. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1153. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1154. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1155. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1156. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1157. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1158. Failed writing message. Aborting connection.
  1159. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1160. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1161. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1162. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1163. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1164. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1165. Failed writing message. Aborting connection.
  1166. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1167. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1168. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1169. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1170. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1171. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1172. Failed writing message. Aborting connection.
  1173. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1174. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1175. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1176. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1177. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1178. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1179. Failed writing message. Aborting connection.
  1180. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1181. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1182. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1183. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1184. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1185. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1186. Failed writing message. Aborting connection.
  1187. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1188. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1189. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1190. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1191. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1192. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1193. Failed writing message. Aborting connection.
  1194. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1195. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1196. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1197. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1198. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1199. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1200. Failed writing message. Aborting connection.
  1201. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1202. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1203. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1204. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1205. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1206. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1207. Failed writing message. Aborting connection.
  1208. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1209. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1210. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1211. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1212. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1213. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1214. Failed writing message. Aborting connection.
  1215. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1216. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1217. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1218. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1219. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1220. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1221. Failed writing message. Aborting connection.
  1222. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1223. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1224. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1225. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1226. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1227. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1228. Failed writing message. Aborting connection.
  1229. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1230. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1231. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1232. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1233. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1234. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1235. Failed writing message. Aborting connection.
  1236. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1237. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1238. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1239. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1240. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1241. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1242. Failed writing message. Aborting connection.
  1243. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1244. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1245. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1246. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1247. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1248. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1249. Failed writing message. Aborting connection.
  1250. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1251. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1252. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1253. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1254. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1255. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1256. Failed writing message. Aborting connection.
  1257. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1258. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1259. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1260. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1261. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1262. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1263. Failed writing message. Aborting connection.
  1264. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1265. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1266. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1267. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1268. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1269. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1270. Failed writing message. Aborting connection.
  1271. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1272. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1273. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1274. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1275. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1276. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1277. Failed writing message. Aborting connection.
  1278. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1279. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1280. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1281. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1282. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1283. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1284. Failed writing message. Aborting connection.
  1285. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1286. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1287. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1288. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1289. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1290. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1291. Failed writing message. Aborting connection.
  1292. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1293. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1294. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1295. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1296. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1297. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1298. Failed writing message. Aborting connection.
  1299. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1300. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1301. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1302. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1303. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1304. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1305. Failed writing message. Aborting connection.
  1306. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1307. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1308. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1309. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1310. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1311. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1312. Failed writing message. Aborting connection.
  1313. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1314. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1315. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1316. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1317. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1318. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1319. Failed writing message. Aborting connection.
  1320. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1321. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1322. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1323. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1324. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1325. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1326. Failed writing message. Aborting connection.
  1327. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1328. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1329. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1330. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1331. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1332. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1333. Failed writing message. Aborting connection.
  1334. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1335. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1336. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1337. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1338. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1339. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1340. Failed writing message. Aborting connection.
  1341. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1342. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1343. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1344. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1345. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1346. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1347. Failed writing message. Aborting connection.
  1348. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1349. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1350. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1351. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1352. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1353. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1354. Failed writing message. Aborting connection.
  1355. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1356. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1357. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1358. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1359. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1360. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1361. Failed writing message. Aborting connection.
  1362. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1363. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1364. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1365. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1366. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1367. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1368. Failed writing message. Aborting connection.
  1369. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1370. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1371. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1372. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1373. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1374. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1375. Failed writing message. Aborting connection.
  1376. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1377. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1378. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1379. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1380. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1381. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1382. Failed writing message. Aborting connection.
  1383. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1384. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1385. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1386. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1387. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1388. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1389. Failed writing message. Aborting connection.
  1390. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1391. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1392. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1393. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1394. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1395. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1396. Failed writing message. Aborting connection.
  1397. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1398. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1399. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1400. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1401. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1402. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1403. Failed writing message. Aborting connection.
  1404. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1405. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1406. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1407. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1408. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1409. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1410. Failed writing message. Aborting connection.
  1411. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1412. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1413. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1414. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1415. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1416. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1417. Failed writing message. Aborting connection.
  1418. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1419. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1420. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1421. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1422. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1423. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1424. Failed writing message. Aborting connection.
  1425. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1426. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1427. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1428. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1429. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1430. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1431. Failed writing message. Aborting connection.
  1432. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1433. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1434. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1435. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1436. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1437. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1438. Failed writing message. Aborting connection.
  1439. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1440. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1441. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1442. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1443. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1444. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1445. Failed writing message. Aborting connection.
  1446. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1447. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1448. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1449. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1450. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1451. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1452. Failed writing message. Aborting connection.
  1453. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1454. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1455. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1456. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1457. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1458. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1459. Failed writing message. Aborting connection.
  1460. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1461. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1462. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1463. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1464. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1465. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1466. Failed writing message. Aborting connection.
  1467. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1468. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1469. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1470. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1471. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1472. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1473. Failed writing message. Aborting connection.
  1474. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1475. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1476. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1477. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1478. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1479. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1480. Failed writing message. Aborting connection.
  1481. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1482. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1483. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1484. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1485. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1486. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1487. Failed writing message. Aborting connection.
  1488. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1489. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1490. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1491. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1492. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1493. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1494. Failed writing message. Aborting connection.
  1495. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1496. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1497. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1498. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1499. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1500. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1501. Failed writing message. Aborting connection.
  1502. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1503. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1504. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1505. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1506. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1507. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1508. Failed writing message. Aborting connection.
  1509. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1510. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1511. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1512. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1513. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1514. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1515. Failed writing message. Aborting connection.
  1516. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1517. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1518. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1519. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1520. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1521. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1522. Failed writing message. Aborting connection.
  1523. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1524. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1525. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1526. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1527. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1528. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1529. Failed writing message. Aborting connection.
  1530. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1531. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1532. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1533. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1534. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1535. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1536. Failed writing message. Aborting connection.
  1537. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1538. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1539. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1540. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1541. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1542. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1543. Failed writing message. Aborting connection.
  1544. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1545. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1546. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1547. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1548. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1549. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1550. Failed writing message. Aborting connection.
  1551. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1552. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1553. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1554. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1555. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1556. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1557. Failed writing message. Aborting connection.
  1558. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1559. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1560. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1561. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1562. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1563. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1564. Failed writing message. Aborting connection.
  1565. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1566. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1567. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1568. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1569. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1570. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1571. Failed writing message. Aborting connection.
  1572. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1573. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1574. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1575. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1576. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1577. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1578. Failed writing message. Aborting connection.
  1579. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1580. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1581. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1582. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1583. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1584. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1585. Failed writing message. Aborting connection.
  1586. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1587. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1588. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1589. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1590. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1591. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1592. Failed writing message. Aborting connection.
  1593. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1594. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1595. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1596. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1597. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1598. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1599. Failed writing message. Aborting connection.
  1600. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1601. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1602. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1603. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1604. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1605. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1606. Failed writing message. Aborting connection.
  1607. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1608. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1609. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1610. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1611. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1612. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1613. Failed writing message. Aborting connection.
  1614. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1615. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1616. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1617. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1618. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1619. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1620. Failed writing message. Aborting connection.
  1621. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1622. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1623. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1624. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1625. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1626. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1627. Failed writing message. Aborting connection.
  1628. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1629. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1630. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1631. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1632. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1633. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1634. Failed writing message. Aborting connection.
  1635. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1636. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1637. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1638. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1639. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1640. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1641. Failed writing message. Aborting connection.
  1642. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1643. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1644. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1645. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1646. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1647. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1648. Failed writing message. Aborting connection.
  1649. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1650. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1651. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1652. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1653. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1654. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1655. Failed writing message. Aborting connection.
  1656. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1657. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1658. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1659. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1660. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1661. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1662. Failed writing message. Aborting connection.
  1663. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1664. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1665. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1666. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1667. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1668. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1669. Failed writing message. Aborting connection.
  1670. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1671. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1672. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1673. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1674. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1675. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1676. Failed writing message. Aborting connection.
  1677. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1678. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1679. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1680. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1681. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1682. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1683. Failed writing message. Aborting connection.
  1684. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1685. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1686. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1687. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1688. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1689. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1690. Failed writing message. Aborting connection.
  1691. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1692. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1693. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1694. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1695. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1696. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1697. Failed writing message. Aborting connection.
  1698. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1699. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1700. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1701. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1702. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1703. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1704. Failed writing message. Aborting connection.
  1705. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1706. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1707. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1708. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1709. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1710. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1711. Failed writing message. Aborting connection.
  1712. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1713. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1714. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1715. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1716. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1717. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1718. Failed writing message. Aborting connection.
  1719. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1720. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1721. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1722. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1723. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1724. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1725. Failed writing message. Aborting connection.
  1726. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1727. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1728. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1729. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1730. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1731. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1732. Failed writing message. Aborting connection.
  1733. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1734. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1735. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1736. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1737. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1738. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1739. Failed writing message. Aborting connection.
  1740. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1741. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1742. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1743. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1744. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1745. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  1746. Heartbeat took longer than "00:00:01" at "06/10/2019 03:35:37 +00:00".
  1747. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  1748. Heartbeat took longer than "00:00:01" at "06/10/2019 03:35:39 +00:00".
  1749. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  1750. Heartbeat took longer than "00:00:01" at "06/10/2019 03:35:39 +00:00".
  1751. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1752. Failed writing message. Aborting connection.
  1753. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1754. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1755. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1756. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1757. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1758. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1759. Failed writing message. Aborting connection.
  1760. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1761. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1762. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1763. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1764. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1765. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1766. Failed writing message. Aborting connection.
  1767. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1768. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1769. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1770. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1771. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1772. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1773. Failed writing message. Aborting connection.
  1774. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1775. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1776. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1777. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1778. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1779. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1780. Failed writing message. Aborting connection.
  1781. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1782. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1783. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1784. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1785. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1786. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1787. Failed writing message. Aborting connection.
  1788. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1789. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1790. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1791. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1792. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1793. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1794. Failed writing message. Aborting connection.
  1795. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1796. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1797. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1798. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1799. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1800. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1801. Failed writing message. Aborting connection.
  1802. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1803. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1804. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1805. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1806. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1807. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1808. Failed writing message. Aborting connection.
  1809. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1810. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1811. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1812. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1813. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1814. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1815. Failed writing message. Aborting connection.
  1816. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1817. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1818. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1819. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1820. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1821. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1822. Failed writing message. Aborting connection.
  1823. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1824. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1825. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1826. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1827. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1828. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1829. Failed writing message. Aborting connection.
  1830. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1831. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1832. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1833. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1834. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1835. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1836. Failed writing message. Aborting connection.
  1837. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1838. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1839. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1840. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1841. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1842. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1843. Failed writing message. Aborting connection.
  1844. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1845. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1846. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1847. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1848. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1849. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1850. Failed writing message. Aborting connection.
  1851. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1852. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1853. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1854. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1855. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1856. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1857. Failed writing message. Aborting connection.
  1858. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1859. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1860. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1861. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1862. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1863. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1864. Failed writing message. Aborting connection.
  1865. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1866. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1867. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1868. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1869. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1870. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1871. Failed writing message. Aborting connection.
  1872. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1873. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1874. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1875. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1876. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1877. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1878. Failed writing message. Aborting connection.
  1879. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1880. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1881. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1882. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1883. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1884. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1885. Failed writing message. Aborting connection.
  1886. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1887. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1888. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1889. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1890. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1891. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1892. Failed writing message. Aborting connection.
  1893. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1894. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1895. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1896. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1897. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1898. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1899. Failed writing message. Aborting connection.
  1900. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1901. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1902. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1903. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1904. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1905. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1906. Failed writing message. Aborting connection.
  1907. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1908. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1909. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1910. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1911. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1912. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1913. Failed writing message. Aborting connection.
  1914. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1915. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1916. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1917. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1918. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1919. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1920. Failed writing message. Aborting connection.
  1921. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1922. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1923. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1924. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1925. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1926. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1927. Failed writing message. Aborting connection.
  1928. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1929. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1930. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1931. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1932. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1933. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1934. Failed writing message. Aborting connection.
  1935. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1936. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1937. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1938. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1939. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1940. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1941. Failed writing message. Aborting connection.
  1942. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1943. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1944. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1945. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1946. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1947. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1948. Failed writing message. Aborting connection.
  1949. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1950. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1951. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1952. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1953. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1954. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1955. Failed writing message. Aborting connection.
  1956. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1957. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1958. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1959. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1960. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1961. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1962. Failed writing message. Aborting connection.
  1963. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1964. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1965. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1966. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1967. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1968. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1969. Failed writing message. Aborting connection.
  1970. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1971. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1972. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1973. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1974. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1975. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1976. Failed writing message. Aborting connection.
  1977. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1978. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1979. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1980. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1981. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1982. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1983. Failed writing message. Aborting connection.
  1984. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1985. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1986. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1987. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1988. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1989. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1990. Failed writing message. Aborting connection.
  1991. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1992. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  1993. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1994. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  1995. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  1996. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  1997. Failed writing message. Aborting connection.
  1998. System.InvalidOperationException: Writing is not allowed after writer was completed.
  1999. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2000. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2001. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2002. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2003. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2004. Failed writing message. Aborting connection.
  2005. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2006. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2007. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2008. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2009. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2010. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2011. Failed writing message. Aborting connection.
  2012. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2013. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2014. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2015. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2016. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2017. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2018. Failed writing message. Aborting connection.
  2019. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2020. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2021. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2022. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2023. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2024. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2025. Failed writing message. Aborting connection.
  2026. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2027. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2028. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2029. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2030. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2031. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2032. Failed writing message. Aborting connection.
  2033. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2034. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2035. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2036. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2037. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2038. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2039. Failed writing message. Aborting connection.
  2040. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2041. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2042. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2043. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2044. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2045. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2046. Failed writing message. Aborting connection.
  2047. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2048. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2049. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2050. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2051. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2052. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2053. Failed writing message. Aborting connection.
  2054. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2055. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2056. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2057. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2058. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2059. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2060. Failed writing message. Aborting connection.
  2061. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2062. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2063. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2064. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2065. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2066. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2067. Failed writing message. Aborting connection.
  2068. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2069. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2070. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2071. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2072. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2073. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2074. Failed writing message. Aborting connection.
  2075. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2076. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2077. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2078. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2079. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2080. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2081. Failed writing message. Aborting connection.
  2082. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2083. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2084. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2085. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2086. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2087. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2088. Failed writing message. Aborting connection.
  2089. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2090. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2091. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2092. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2093. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2094. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2095. Failed writing message. Aborting connection.
  2096. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2097. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2098. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2099. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2100. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2101. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2102. Failed writing message. Aborting connection.
  2103. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2104. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2105. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2106. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2107. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2108. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2109. Failed writing message. Aborting connection.
  2110. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2111. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2112. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2113. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2114. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2115. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2116. Failed writing message. Aborting connection.
  2117. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2118. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2119. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2120. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2121. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2122. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2123. Failed writing message. Aborting connection.
  2124. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2125. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2126. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2127. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2128. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2129. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2130. Failed writing message. Aborting connection.
  2131. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2132. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2133. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2134. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2135. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2136. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2137. Failed writing message. Aborting connection.
  2138. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2139. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2140. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2141. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2142. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2143. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2144. Failed writing message. Aborting connection.
  2145. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2146. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2147. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2148. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2149. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2150. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2151. Failed writing message. Aborting connection.
  2152. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2153. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2154. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2155. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2156. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2157. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2158. Failed writing message. Aborting connection.
  2159. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2160. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2161. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2162. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2163. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2164. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2165. Failed writing message. Aborting connection.
  2166. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2167. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2168. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2169. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2170. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2171. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2172. Failed writing message. Aborting connection.
  2173. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2174. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2175. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2176. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2177. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2178. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2179. Failed writing message. Aborting connection.
  2180. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2181. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2182. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2183. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2184. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2185. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2186. Failed writing message. Aborting connection.
  2187. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2188. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2189. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2190. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2191. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2192. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2193. Failed writing message. Aborting connection.
  2194. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2195. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2196. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2197. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2198. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2199. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2200. Failed writing message. Aborting connection.
  2201. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2202. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2203. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2204. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2205. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2206. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2207. Failed writing message. Aborting connection.
  2208. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2209. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2210. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2211. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2212. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2213. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2214. Failed writing message. Aborting connection.
  2215. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2216. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2217. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2218. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2219. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2220. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2221. Failed writing message. Aborting connection.
  2222. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2223. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2224. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2225. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2226. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2227. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2228. Failed writing message. Aborting connection.
  2229. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2230. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2231. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2232. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2233. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2234. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2235. Failed writing message. Aborting connection.
  2236. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2237. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2238. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2239. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2240. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2241. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2242. Failed writing message. Aborting connection.
  2243. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2244. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2245. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2246. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2247. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2248. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2249. Failed writing message. Aborting connection.
  2250. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2251. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2252. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2253. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2254. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2255. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2256. Failed writing message. Aborting connection.
  2257. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2258. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2259. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2260. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2261. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2262. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2263. Failed writing message. Aborting connection.
  2264. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2265. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2266. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2267. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2268. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2269. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2270. Failed writing message. Aborting connection.
  2271. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2272. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2273. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2274. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2275. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2276. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2277. Failed writing message. Aborting connection.
  2278. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2279. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2280. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2281. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2282. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2283. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2284. Failed writing message. Aborting connection.
  2285. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2286. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2287. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2288. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2289. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2290. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2291. Failed writing message. Aborting connection.
  2292. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2293. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2294. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2295. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2296. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2297. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2298. Failed writing message. Aborting connection.
  2299. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2300. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2301. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2302. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2303. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2304. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2305. Failed writing message. Aborting connection.
  2306. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2307. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2308. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2309. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2310. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2311. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2312. Failed writing message. Aborting connection.
  2313. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2314. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2315. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2316. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2317. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2318. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2319. Failed writing message. Aborting connection.
  2320. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2321. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2322. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2323. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2324. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2325. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2326. Failed writing message. Aborting connection.
  2327. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2328. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2329. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2330. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2331. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2332. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2333. Failed writing message. Aborting connection.
  2334. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2335. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2336. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2337. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2338. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2339. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2340. Failed writing message. Aborting connection.
  2341. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2342. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2343. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2344. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2345. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2346. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2347. Failed writing message. Aborting connection.
  2348. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2349. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2350. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2351. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2352. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2353. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2354. Failed writing message. Aborting connection.
  2355. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2356. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2357. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2358. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2359. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2360. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2361. Failed writing message. Aborting connection.
  2362. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2363. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2364. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2365. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2366. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2367. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2368. Failed writing message. Aborting connection.
  2369. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2370. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2371. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2372. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2373. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2374. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2375. Failed writing message. Aborting connection.
  2376. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2377. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2378. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2379. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2380. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2381. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2382. Failed writing message. Aborting connection.
  2383. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2384. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2385. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2386. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2387. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2388. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2389. Failed writing message. Aborting connection.
  2390. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2391. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2392. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2393. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2394. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2395. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2396. Failed writing message. Aborting connection.
  2397. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2398. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2399. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2400. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2401. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2402. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2403. Failed writing message. Aborting connection.
  2404. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2405. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2406. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2407. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2408. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2409. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2410. Failed writing message. Aborting connection.
  2411. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2412. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2413. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2414. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2415. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2416. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2417. Failed writing message. Aborting connection.
  2418. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2419. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2420. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2421. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2422. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2423. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2424. Failed writing message. Aborting connection.
  2425. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2426. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2427. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2428. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2429. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2430. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2431. Failed writing message. Aborting connection.
  2432. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2433. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2434. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2435. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2436. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2437. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2438. Failed writing message. Aborting connection.
  2439. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2440. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2441. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2442. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2443. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2444. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2445. Failed writing message. Aborting connection.
  2446. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2447. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2448. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2449. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2450. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2451. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2452. Failed writing message. Aborting connection.
  2453. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2454. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2455. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2456. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2457. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2458. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2459. Failed writing message. Aborting connection.
  2460. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2461. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2462. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2463. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2464. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2465. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2466. Failed writing message. Aborting connection.
  2467. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2468. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2469. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2470. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2471. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2472. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2473. Failed writing message. Aborting connection.
  2474. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2475. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2476. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2477. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2478. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2479. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2480. Failed writing message. Aborting connection.
  2481. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2482. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2483. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2484. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2485. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2486. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2487. Failed writing message. Aborting connection.
  2488. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2489. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2490. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2491. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2492. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2493. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2494. Failed writing message. Aborting connection.
  2495. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2496. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2497. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2498. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2499. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2500. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2501. Failed writing message. Aborting connection.
  2502. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2503. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2504. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2505. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2506. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2507. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2508. Failed writing message. Aborting connection.
  2509. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2510. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2511. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2512. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2513. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2514. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2515. Failed writing message. Aborting connection.
  2516. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2517. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2518. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2519. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2520. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2521. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2522. Failed writing message. Aborting connection.
  2523. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2524. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2525. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2526. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2527. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2528. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2529. Failed writing message. Aborting connection.
  2530. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2531. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2532. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2533. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2534. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2535. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2536. Failed writing message. Aborting connection.
  2537. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2538. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2539. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2540. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2541. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2542. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2543. Failed writing message. Aborting connection.
  2544. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2545. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2546. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2547. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2548. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2549. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2550. Failed writing message. Aborting connection.
  2551. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2552. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2553. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2554. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2555. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2556. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2557. Failed writing message. Aborting connection.
  2558. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2559. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2560. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2561. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2562. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2563. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2564. Failed writing message. Aborting connection.
  2565. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2566. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2567. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2568. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2569. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2570. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2571. Failed writing message. Aborting connection.
  2572. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2573. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2574. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2575. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2576. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2577. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2578. Failed writing message. Aborting connection.
  2579. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2580. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2581. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2582. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2583. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2584. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2585. Failed writing message. Aborting connection.
  2586. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2587. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2588. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2589. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2590. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2591. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2592. Failed writing message. Aborting connection.
  2593. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2594. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2595. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2596. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2597. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2598. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2599. Failed writing message. Aborting connection.
  2600. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2601. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2602. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2603. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2604. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2605. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2606. Failed writing message. Aborting connection.
  2607. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2608. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2609. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2610. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2611. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2612. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2613. Failed writing message. Aborting connection.
  2614. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2615. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2616. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2617. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2618. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2619. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2620. Failed writing message. Aborting connection.
  2621. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2622. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2623. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2624. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2625. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2626. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2627. Failed writing message. Aborting connection.
  2628. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2629. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2630. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2631. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2632. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2633. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2634. Failed writing message. Aborting connection.
  2635. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2636. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2637. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2638. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2639. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2640. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2641. Failed writing message. Aborting connection.
  2642. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2643. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2644. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2645. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2646. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2647. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2648. Failed writing message. Aborting connection.
  2649. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2650. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2651. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2652. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2653. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2654. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2655. Failed writing message. Aborting connection.
  2656. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2657. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2658. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2659. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2660. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2661. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2662. Failed writing message. Aborting connection.
  2663. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2664. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2665. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2666. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2667. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2668. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2669. Failed writing message. Aborting connection.
  2670. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2671. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2672. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2673. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2674. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2675. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2676. Failed writing message. Aborting connection.
  2677. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2678. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2679. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2680. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2681. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2682. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2683. Failed writing message. Aborting connection.
  2684. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2685. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2686. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2687. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2688. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2689. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2690. Failed writing message. Aborting connection.
  2691. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2692. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2693. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2694. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2695. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2696. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2697. Failed writing message. Aborting connection.
  2698. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2699. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2700. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2701. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2702. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2703. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2704. Failed writing message. Aborting connection.
  2705. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2706. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2707. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2708. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2709. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2710. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2711. Failed writing message. Aborting connection.
  2712. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2713. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2714. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2715. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2716. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2717. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2718. Failed writing message. Aborting connection.
  2719. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2720. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2721. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2722. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2723. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2724. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2725. Failed writing message. Aborting connection.
  2726. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2727. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2728. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2729. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2730. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2731. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2732. Failed writing message. Aborting connection.
  2733. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2734. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2735. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2736. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2737. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2738. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2739. Failed writing message. Aborting connection.
  2740. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2741. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2742. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2743. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2744. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2745. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2746. Failed writing message. Aborting connection.
  2747. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2748. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2749. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2750. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2751. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2752. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2753. Failed writing message. Aborting connection.
  2754. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2755. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2756. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2757. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2758. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2759. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2760. Failed writing message. Aborting connection.
  2761. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2762. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2763. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2764. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2765. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2766. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2767. Failed writing message. Aborting connection.
  2768. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2769. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2770. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2771. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2772. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2773. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2774. Failed writing message. Aborting connection.
  2775. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2776. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2777. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2778. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2779. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2780. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2781. Failed writing message. Aborting connection.
  2782. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2783. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2784. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2785. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2786. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2787. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2788. Failed writing message. Aborting connection.
  2789. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2790. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2791. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2792. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2793. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2794. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2795. Failed writing message. Aborting connection.
  2796. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2797. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2798. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2799. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2800. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2801. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2802. Failed writing message. Aborting connection.
  2803. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2804. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2805. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2806. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2807. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2808. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2809. Failed writing message. Aborting connection.
  2810. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2811. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2812. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2813. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2814. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2815. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2816. Failed writing message. Aborting connection.
  2817. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2818. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2819. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2820. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2821. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2822. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2823. Failed writing message. Aborting connection.
  2824. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2825. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2826. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2827. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2828. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2829. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2830. Failed writing message. Aborting connection.
  2831. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2832. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2833. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2834. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2835. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2836. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2837. Failed writing message. Aborting connection.
  2838. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2839. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2840. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2841. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2842. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2843. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2844. Failed writing message. Aborting connection.
  2845. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2846. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2847. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2848. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2849. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2850. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2851. Failed writing message. Aborting connection.
  2852. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2853. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2854. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2855. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2856. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2857. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2858. Failed writing message. Aborting connection.
  2859. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2860. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2861. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2862. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2863. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2864. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2865. Failed writing message. Aborting connection.
  2866. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2867. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2868. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2869. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2870. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2871. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2872. Failed writing message. Aborting connection.
  2873. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2874. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2875. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2876. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2877. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2878. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2879. Failed writing message. Aborting connection.
  2880. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2881. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2882. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2883. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2884. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2885. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2886. Failed writing message. Aborting connection.
  2887. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2888. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2889. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2890. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2891. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2892. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2893. Failed writing message. Aborting connection.
  2894. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2895. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2896. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2897. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2898. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2899. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2900. Failed writing message. Aborting connection.
  2901. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2902. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2903. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2904. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2905. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2906. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2907. Failed writing message. Aborting connection.
  2908. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2909. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2910. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2911. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2912. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2913. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2914. Failed writing message. Aborting connection.
  2915. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2916. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2917. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2918. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2919. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2920. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2921. Failed writing message. Aborting connection.
  2922. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2923. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2924. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2925. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2926. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2927. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2928. Failed writing message. Aborting connection.
  2929. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2930. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2931. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2932. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2933. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2934. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2935. Failed writing message. Aborting connection.
  2936. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2937. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2938. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2939. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2940. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2941. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2942. Failed writing message. Aborting connection.
  2943. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2944. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2945. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2946. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2947. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2948. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2949. Failed writing message. Aborting connection.
  2950. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2951. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2952. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2953. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2954. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2955. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2956. Failed writing message. Aborting connection.
  2957. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2958. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2959. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2960. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2961. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2962. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2963. Failed writing message. Aborting connection.
  2964. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2965. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2966. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2967. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2968. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2969. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2970. Failed writing message. Aborting connection.
  2971. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2972. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2973. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2974. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2975. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2976. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2977. Failed writing message. Aborting connection.
  2978. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2979. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2980. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2981. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2982. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2983. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2984. Failed writing message. Aborting connection.
  2985. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2986. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2987. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2988. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2989. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2990. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2991. Failed writing message. Aborting connection.
  2992. System.InvalidOperationException: Writing is not allowed after writer was completed.
  2993. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  2994. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2995. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  2996. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  2997. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  2998. Failed writing message. Aborting connection.
  2999. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3000. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3001. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3002. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3003. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3004. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3005. Failed writing message. Aborting connection.
  3006. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3007. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3008. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3009. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3010. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3011. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3012. Failed writing message. Aborting connection.
  3013. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3014. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3015. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3016. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3017. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3018. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3019. Failed writing message. Aborting connection.
  3020. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3021. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3022. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3023. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3024. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3025. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3026. Failed writing message. Aborting connection.
  3027. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3028. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3029. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3030. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3031. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3032. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3033. Failed writing message. Aborting connection.
  3034. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3035. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3036. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3037. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3038. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3039. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3040. Failed writing message. Aborting connection.
  3041. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3042. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3043. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3044. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3045. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3046. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3047. Failed writing message. Aborting connection.
  3048. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3049. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3050. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3051. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3052. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3053. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3054. Failed writing message. Aborting connection.
  3055. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3056. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3057. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3058. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3059. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3060. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3061. Failed writing message. Aborting connection.
  3062. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3063. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3064. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3065. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3066. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3067. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3068. Failed writing message. Aborting connection.
  3069. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3070. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3071. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3072. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3073. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3074. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3075. Failed writing message. Aborting connection.
  3076. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3077. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3078. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3079. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3080. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3081. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3082. Failed writing message. Aborting connection.
  3083. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3084. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3085. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3086. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3087. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3088. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3089. Failed writing message. Aborting connection.
  3090. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3091. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3092. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3093. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3094. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3095. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3096. Failed writing message. Aborting connection.
  3097. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3098. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3099. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3100. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3101. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3102. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3103. Failed writing message. Aborting connection.
  3104. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3105. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3106. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3107. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3108. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3109. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3110. Failed writing message. Aborting connection.
  3111. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3112. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3113. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3114. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3115. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3116. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3117. Failed writing message. Aborting connection.
  3118. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3119. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3120. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3121. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3122. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3123. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3124. Failed writing message. Aborting connection.
  3125. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3126. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3127. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3128. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3129. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3130. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3131. Failed writing message. Aborting connection.
  3132. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3133. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3134. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3135. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3136. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3137. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3138. Failed writing message. Aborting connection.
  3139. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3140. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3141. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3142. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3143. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3144. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3145. Failed writing message. Aborting connection.
  3146. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3147. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3148. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3149. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3150. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3151. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3152. Failed writing message. Aborting connection.
  3153. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3154. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3155. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3156. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3157. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3158. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3159. Failed writing message. Aborting connection.
  3160. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3161. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3162. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3163. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3164. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3165. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3166. Failed writing message. Aborting connection.
  3167. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3168. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3169. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3170. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3171. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3172. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3173. Failed writing message. Aborting connection.
  3174. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3175. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3176. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3177. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3178. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3179. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3180. Failed writing message. Aborting connection.
  3181. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3182. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3183. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3184. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3185. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3186. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3187. Failed writing message. Aborting connection.
  3188. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3189. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3190. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3191. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3192. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3193. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3194. Failed writing message. Aborting connection.
  3195. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3196. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3197. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3198. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3199. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3200. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3201. Failed writing message. Aborting connection.
  3202. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3203. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3204. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3205. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3206. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3207. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3208. Failed writing message. Aborting connection.
  3209. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3210. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3211. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3212. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3213. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3214. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3215. Failed writing message. Aborting connection.
  3216. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3217. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3218. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3219. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3220. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3221. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3222. Failed writing message. Aborting connection.
  3223. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3224. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3225. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3226. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3227. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3228. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3229. Failed writing message. Aborting connection.
  3230. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3231. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3232. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3233. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3234. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3235. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3236. Failed writing message. Aborting connection.
  3237. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3238. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3239. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3240. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3241. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3242. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3243. Failed writing message. Aborting connection.
  3244. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3245. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3246. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3247. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3248. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3249. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3250. Failed writing message. Aborting connection.
  3251. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3252. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3253. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3254. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3255. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3256. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3257. Failed writing message. Aborting connection.
  3258. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3259. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3260. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3261. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3262. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3263. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3264. Failed writing message. Aborting connection.
  3265. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3266. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3267. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3268. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3269. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3270. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3271. Failed writing message. Aborting connection.
  3272. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3273. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3274. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3275. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3276. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3277. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3278. Failed writing message. Aborting connection.
  3279. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3280. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3281. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3282. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3283. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3284. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3285. Failed writing message. Aborting connection.
  3286. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3287. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3288. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3289. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3290. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3291. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3292. Failed writing message. Aborting connection.
  3293. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3294. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3295. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3296. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3297. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3298. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3299. Failed writing message. Aborting connection.
  3300. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3301. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3302. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3303. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3304. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3305. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3306. Failed writing message. Aborting connection.
  3307. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3308. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3309. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3310. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3311. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3312. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3313. Failed writing message. Aborting connection.
  3314. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3315. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3316. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3317. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3318. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3319. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3320. Failed writing message. Aborting connection.
  3321. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3322. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3323. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3324. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3325. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3326. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3327. Failed writing message. Aborting connection.
  3328. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3329. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3330. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3331. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3332. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3333. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3334. Failed writing message. Aborting connection.
  3335. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3336. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3337. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3338. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3339. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3340. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3341. Failed writing message. Aborting connection.
  3342. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3343. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3344. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3345. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3346. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3347. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3348. Failed writing message. Aborting connection.
  3349. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3350. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3351. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3352. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3353. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3354. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3355. Failed writing message. Aborting connection.
  3356. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3357. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3358. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3359. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3360. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3361. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3362. Failed writing message. Aborting connection.
  3363. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3364. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3365. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3366. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3367. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3368. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3369. Failed writing message. Aborting connection.
  3370. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3371. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3372. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3373. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3374. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3375. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3376. Failed writing message. Aborting connection.
  3377. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3378. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3379. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3380. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3381. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3382. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3383. Failed writing message. Aborting connection.
  3384. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3385. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3386. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3387. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3388. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3389. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3390. Failed writing message. Aborting connection.
  3391. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3392. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3393. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3394. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3395. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3396. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3397. Failed writing message. Aborting connection.
  3398. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3399. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3400. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3401. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3402. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3403. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3404. Failed writing message. Aborting connection.
  3405. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3406. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3407. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3408. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3409. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3410. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3411. Failed writing message. Aborting connection.
  3412. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3413. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3414. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3415. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3416. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3417. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3418. Failed writing message. Aborting connection.
  3419. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3420. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3421. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3422. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3423. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3424. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3425. Failed writing message. Aborting connection.
  3426. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3427. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3428. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3429. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3430. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3431. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3432. Failed writing message. Aborting connection.
  3433. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3434. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3435. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3436. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3437. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3438. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3439. Failed writing message. Aborting connection.
  3440. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3441. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3442. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3443. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3444. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3445. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3446. Failed writing message. Aborting connection.
  3447. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3448. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3449. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3450. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3451. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3452. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3453. Failed writing message. Aborting connection.
  3454. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3455. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3456. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3457. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3458. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3459. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3460. Failed writing message. Aborting connection.
  3461. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3462. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3463. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3464. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3465. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3466. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3467. Failed writing message. Aborting connection.
  3468. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3469. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3470. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3471. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3472. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3473. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3474. Failed writing message. Aborting connection.
  3475. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3476. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3477. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3478. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3479. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3480. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3481. Failed writing message. Aborting connection.
  3482. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3483. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3484. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3485. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3486. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3487. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3488. Failed writing message. Aborting connection.
  3489. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3490. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3491. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3492. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3493. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3494. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3495. Failed writing message. Aborting connection.
  3496. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3497. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3498. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3499. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3500. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3501. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3502. Failed writing message. Aborting connection.
  3503. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3504. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3505. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3506. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3507. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3508. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3509. Failed writing message. Aborting connection.
  3510. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3511. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3512. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3513. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3514. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3515. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3516. Failed writing message. Aborting connection.
  3517. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3518. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3519. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3520. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3521. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3522. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3523. Failed writing message. Aborting connection.
  3524. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3525. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3526. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3527. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3528. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3529. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3530. Failed writing message. Aborting connection.
  3531. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3532. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3533. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3534. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3535. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3536. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3537. Failed writing message. Aborting connection.
  3538. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3539. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3540. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3541. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3542. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3543. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3544. Failed writing message. Aborting connection.
  3545. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3546. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3547. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3548. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3549. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3550. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3551. Failed writing message. Aborting connection.
  3552. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3553. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3554. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3555. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3556. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3557. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3558. Failed writing message. Aborting connection.
  3559. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3560. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3561. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3562. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3563. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3564. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3565. Failed writing message. Aborting connection.
  3566. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3567. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3568. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3569. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3570. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3571. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3572. Failed writing message. Aborting connection.
  3573. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3574. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3575. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3576. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3577. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3578. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3579. Failed writing message. Aborting connection.
  3580. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3581. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3582. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3583. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3584. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3585. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3586. Failed writing message. Aborting connection.
  3587. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3588. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3589. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3590. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3591. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3592. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3593. Failed writing message. Aborting connection.
  3594. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3595. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3596. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3597. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3598. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3599. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3600. Failed writing message. Aborting connection.
  3601. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3602. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3603. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3604. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3605. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3606. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3607. Failed writing message. Aborting connection.
  3608. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3609. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3610. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3611. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3612. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3613. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3614. Failed writing message. Aborting connection.
  3615. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3616. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3617. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3618. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3619. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3620. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3621. Failed writing message. Aborting connection.
  3622. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3623. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3624. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3625. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3626. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3627. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3628. Failed writing message. Aborting connection.
  3629. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3630. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3631. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3632. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3633. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3634. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3635. Failed writing message. Aborting connection.
  3636. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3637. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3638. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3639. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3640. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3641. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3642. Failed writing message. Aborting connection.
  3643. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3644. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3645. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3646. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3647. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3648. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3649. Failed writing message. Aborting connection.
  3650. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3651. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3652. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3653. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3654. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3655. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3656. Failed writing message. Aborting connection.
  3657. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3658. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3659. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3660. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3661. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3662. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3663. Failed writing message. Aborting connection.
  3664. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3665. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3666. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3667. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3668. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3669. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3670. Failed writing message. Aborting connection.
  3671. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3672. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3673. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3674. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3675. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3676. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3677. Failed writing message. Aborting connection.
  3678. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3679. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3680. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3681. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3682. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3683. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3684. Failed writing message. Aborting connection.
  3685. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3686. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3687. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3688. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3689. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3690. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3691. Failed writing message. Aborting connection.
  3692. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3693. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3694. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3695. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3696. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3697. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3698. Failed writing message. Aborting connection.
  3699. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3700. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3701. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3702. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3703. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3704. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3705. Failed writing message. Aborting connection.
  3706. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3707. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3708. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3709. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3710. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3711. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3712. Failed writing message. Aborting connection.
  3713. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3714. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3715. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3716. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3717. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3718. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3719. Failed writing message. Aborting connection.
  3720. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3721. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3722. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3723. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3724. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3725. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3726. Failed writing message. Aborting connection.
  3727. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3728. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3729. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3730. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3731. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3732. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3733. Failed writing message. Aborting connection.
  3734. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3735. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3736. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3737. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3738. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3739. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3740. Failed writing message. Aborting connection.
  3741. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3742. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3743. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3744. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3745. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3746. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3747. Failed writing message. Aborting connection.
  3748. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3749. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3750. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3751. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3752. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3753. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3754. Failed writing message. Aborting connection.
  3755. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3756. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3757. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3758. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3759. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3760. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3761. Failed writing message. Aborting connection.
  3762. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3763. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3764. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3765. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3766. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3767. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3768. Failed writing message. Aborting connection.
  3769. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3770. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3771. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3772. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3773. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3774. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3775. Failed writing message. Aborting connection.
  3776. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3777. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3778. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3779. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3780. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3781. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3782. Failed writing message. Aborting connection.
  3783. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3784. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3785. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3786. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3787. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3788. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3789. Failed writing message. Aborting connection.
  3790. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3791. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3792. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3793. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3794. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3795. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3796. Failed writing message. Aborting connection.
  3797. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3798. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3799. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3800. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3801. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3802. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3803. Failed writing message. Aborting connection.
  3804. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3805. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3806. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3807. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3808. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3809. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3810. Failed writing message. Aborting connection.
  3811. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3812. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3813. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3814. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3815. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3816. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3817. Failed writing message. Aborting connection.
  3818. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3819. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3820. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3821. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3822. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3823. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3824. Failed writing message. Aborting connection.
  3825. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3826. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3827. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3828. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3829. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3830. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3831. Failed writing message. Aborting connection.
  3832. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3833. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3834. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3835. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3836. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3837. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3838. Failed writing message. Aborting connection.
  3839. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3840. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3841. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3842. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3843. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3844. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3845. Failed writing message. Aborting connection.
  3846. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3847. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3848. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3849. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3850. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3851. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3852. Failed writing message. Aborting connection.
  3853. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3854. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3855. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3856. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3857. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3858. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3859. Failed writing message. Aborting connection.
  3860. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3861. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3862. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3863. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3864. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3865. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3866. Failed writing message. Aborting connection.
  3867. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3868. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3869. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3870. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3871. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3872. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3873. Failed writing message. Aborting connection.
  3874. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3875. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3876. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3877. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3878. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3879. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3880. Failed writing message. Aborting connection.
  3881. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3882. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3883. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3884. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3885. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3886. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3887. Failed writing message. Aborting connection.
  3888. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3889. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3890. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3891. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3892. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3893. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3894. Failed writing message. Aborting connection.
  3895. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3896. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3897. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3898. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3899. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3900. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3901. Failed writing message. Aborting connection.
  3902. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3903. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3904. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3905. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3906. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3907. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3908. Failed writing message. Aborting connection.
  3909. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3910. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3911. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3912. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3913. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3914. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3915. Failed writing message. Aborting connection.
  3916. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3917. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3918. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3919. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3920. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3921. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3922. Failed writing message. Aborting connection.
  3923. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3924. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3925. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3926. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3927. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3928. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3929. Failed writing message. Aborting connection.
  3930. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3931. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3932. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3933. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3934. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3935. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3936. Failed writing message. Aborting connection.
  3937. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3938. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3939. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3940. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3941. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3942. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3943. Failed writing message. Aborting connection.
  3944. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3945. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3946. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3947. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3948. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3949. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3950. Failed writing message. Aborting connection.
  3951. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3952. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3953. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3954. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3955. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3956. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3957. Failed writing message. Aborting connection.
  3958. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3959. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3960. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3961. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3962. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3963. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3964. Failed writing message. Aborting connection.
  3965. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3966. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3967. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3968. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3969. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3970. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3971. Failed writing message. Aborting connection.
  3972. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3973. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3974. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3975. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3976. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3977. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3978. Failed writing message. Aborting connection.
  3979. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3980. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3981. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3982. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3983. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3984. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3985. Failed writing message. Aborting connection.
  3986. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3987. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3988. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3989. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3990. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3991. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3992. Failed writing message. Aborting connection.
  3993. System.InvalidOperationException: Writing is not allowed after writer was completed.
  3994. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  3995. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3996. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  3997. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  3998. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  3999. Failed writing message. Aborting connection.
  4000. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4001. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4002. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4003. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4004. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4005. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4006. Failed writing message. Aborting connection.
  4007. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4008. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4009. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4010. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4011. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4012. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4013. Failed writing message. Aborting connection.
  4014. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4015. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4016. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4017. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4018. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4019. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4020. Failed writing message. Aborting connection.
  4021. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4022. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4023. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4024. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4025. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4026. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4027. Failed writing message. Aborting connection.
  4028. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4029. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4030. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4031. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4032. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4033. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4034. Failed writing message. Aborting connection.
  4035. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4036. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4037. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4038. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4039. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4040. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4041. Failed writing message. Aborting connection.
  4042. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4043. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4044. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4045. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4046. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4047. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4048. Failed writing message. Aborting connection.
  4049. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4050. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4051. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4052. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4053. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4054. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4055. Failed writing message. Aborting connection.
  4056. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4057. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4058. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4059. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4060. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4061. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4062. Failed writing message. Aborting connection.
  4063. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4064. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4065. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4066. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4067. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4068. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4069. Failed writing message. Aborting connection.
  4070. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4071. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4072. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4073. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4074. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4075. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4076. Failed writing message. Aborting connection.
  4077. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4078. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4079. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4080. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4081. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4082. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4083. Failed writing message. Aborting connection.
  4084. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4085. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4086. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4087. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4088. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4089. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4090. Failed writing message. Aborting connection.
  4091. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4092. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4093. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4094. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4095. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4096. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4097. Failed writing message. Aborting connection.
  4098. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4099. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4100. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4101. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4102. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4103. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4104. Failed writing message. Aborting connection.
  4105. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4106. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4107. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4108. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4109. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4110. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4111. Failed writing message. Aborting connection.
  4112. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4113. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4114. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4115. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4116. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4117. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4118. Failed writing message. Aborting connection.
  4119. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4120. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4121. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4122. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4123. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4124. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4125. Failed writing message. Aborting connection.
  4126. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4127. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4128. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4129. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4130. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4131. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4132. Failed writing message. Aborting connection.
  4133. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4134. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4135. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4136. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4137. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4138. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4139. Failed writing message. Aborting connection.
  4140. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4141. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4142. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4143. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4144. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4145. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4146. Failed writing message. Aborting connection.
  4147. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4148. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4149. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4150. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4151. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4152. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4153. Failed writing message. Aborting connection.
  4154. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4155. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4156. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4157. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4158. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4159. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4160. Failed writing message. Aborting connection.
  4161. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4162. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4163. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4164. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4165. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4166. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4167. Failed writing message. Aborting connection.
  4168. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4169. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4170. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4171. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4172. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4173. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4174. Failed writing message. Aborting connection.
  4175. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4176. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4177. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4178. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4179. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4180. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4181. Failed writing message. Aborting connection.
  4182. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4183. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4184. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4185. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4186. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4187. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4188. Failed writing message. Aborting connection.
  4189. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4190. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4191. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4192. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4193. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4194. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4195. Failed writing message. Aborting connection.
  4196. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4197. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4198. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4199. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4200. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4201. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4202. Failed writing message. Aborting connection.
  4203. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4204. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4205. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4206. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4207. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4208. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4209. Failed writing message. Aborting connection.
  4210. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4211. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4212. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4213. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4214. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4215. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4216. Failed writing message. Aborting connection.
  4217. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4218. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4219. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4220. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4221. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4222. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4223. Failed writing message. Aborting connection.
  4224. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4225. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4226. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4227. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4228. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4229. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4230. Failed writing message. Aborting connection.
  4231. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4232. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4233. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4234. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4235. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4236. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4237. Failed writing message. Aborting connection.
  4238. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4239. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4240. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4241. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4242. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4243. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4244. Failed writing message. Aborting connection.
  4245. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4246. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4247. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4248. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4249. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4250. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4251. Failed writing message. Aborting connection.
  4252. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4253. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4254. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4255. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4256. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4257. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4258. Failed writing message. Aborting connection.
  4259. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4260. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4261. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4262. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4263. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4264. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4265. Failed writing message. Aborting connection.
  4266. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4267. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4268. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4269. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4270. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4271. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4272. Failed writing message. Aborting connection.
  4273. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4274. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4275. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4276. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4277. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4278. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4279. Failed writing message. Aborting connection.
  4280. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4281. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4282. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4283. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4284. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4285. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4286. Failed writing message. Aborting connection.
  4287. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4288. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4289. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4290. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4291. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4292. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4293. Failed writing message. Aborting connection.
  4294. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4295. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4296. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4297. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4298. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4299. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4300. Failed writing message. Aborting connection.
  4301. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4302. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4303. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4304. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4305. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4306. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4307. Failed writing message. Aborting connection.
  4308. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4309. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4310. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4311. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4312. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4313. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4314. Failed writing message. Aborting connection.
  4315. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4316. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4317. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4318. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4319. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4320. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4321. Failed writing message. Aborting connection.
  4322. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4323. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4324. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4325. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4326. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4327. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4328. Failed writing message. Aborting connection.
  4329. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4330. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4331. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4332. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4333. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4334. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4335. Failed writing message. Aborting connection.
  4336. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4337. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4338. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4339. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4340. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4341. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4342. Failed writing message. Aborting connection.
  4343. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4344. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4345. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4346. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4347. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4348. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4349. Failed writing message. Aborting connection.
  4350. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4351. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4352. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4353. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4354. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4355. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4356. Failed writing message. Aborting connection.
  4357. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4358. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4359. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4360. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4361. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4362. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4363. Failed writing message. Aborting connection.
  4364. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4365. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4366. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4367. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4368. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4369. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4370. Failed writing message. Aborting connection.
  4371. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4372. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4373. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4374. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4375. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4376. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4377. Failed writing message. Aborting connection.
  4378. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4379. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4380. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4381. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4382. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4383. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4384. Failed writing message. Aborting connection.
  4385. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4386. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4387. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4388. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4389. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4390. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4391. Failed writing message. Aborting connection.
  4392. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4393. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4394. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4395. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4396. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4397. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4398. Failed writing message. Aborting connection.
  4399. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4400. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4401. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4402. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4403. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4404. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4405. Failed writing message. Aborting connection.
  4406. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4407. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4408. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4409. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4410. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4411. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4412. Failed writing message. Aborting connection.
  4413. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4414. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4415. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4416. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4417. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4418. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4419. Failed writing message. Aborting connection.
  4420. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4421. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4422. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4423. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4424. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4425. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4426. Failed writing message. Aborting connection.
  4427. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4428. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4429. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4430. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4431. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4432. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4433. Failed writing message. Aborting connection.
  4434. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4435. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4436. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4437. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4438. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4439. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4440. Failed writing message. Aborting connection.
  4441. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4442. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4443. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4444. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4445. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4446. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4447. Failed writing message. Aborting connection.
  4448. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4449. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4450. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4451. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4452. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4453. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4454. Failed writing message. Aborting connection.
  4455. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4456. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4457. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4458. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4459. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4460. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4461. Failed writing message. Aborting connection.
  4462. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4463. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4464. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4465. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4466. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4467. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4468. Failed writing message. Aborting connection.
  4469. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4470. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4471. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4472. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4473. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4474. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4475. Failed writing message. Aborting connection.
  4476. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4477. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4478. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4479. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4480. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4481. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4482. Failed writing message. Aborting connection.
  4483. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4484. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4485. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4486. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4487. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4488. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4489. Failed writing message. Aborting connection.
  4490. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4491. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4492. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4493. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4494. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4495. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4496. Failed writing message. Aborting connection.
  4497. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4498. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4499. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4500. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4501. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4502. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4503. Failed writing message. Aborting connection.
  4504. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4505. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4506. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4507. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4508. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4509. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4510. Failed writing message. Aborting connection.
  4511. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4512. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4513. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4514. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4515. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4516. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4517. Failed writing message. Aborting connection.
  4518. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4519. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4520. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4521. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4522. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4523. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4524. Failed writing message. Aborting connection.
  4525. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4526. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4527. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4528. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4529. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4530. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4531. Failed writing message. Aborting connection.
  4532. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4533. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4534. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4535. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4536. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4537. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4538. Failed writing message. Aborting connection.
  4539. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4540. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4541. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4542. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4543. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4544. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4545. Failed writing message. Aborting connection.
  4546. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4547. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4548. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4549. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4550. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4551. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4552. Failed writing message. Aborting connection.
  4553. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4554. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4555. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4556. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4557. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4558. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4559. Failed writing message. Aborting connection.
  4560. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4561. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4562. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4563. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4564. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4565. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4566. Failed writing message. Aborting connection.
  4567. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4568. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4569. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4570. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4571. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4572. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4573. Failed writing message. Aborting connection.
  4574. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4575. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4576. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4577. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4578. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4579. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4580. Failed writing message. Aborting connection.
  4581. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4582. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4583. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4584. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4585. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4586. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4587. Failed writing message. Aborting connection.
  4588. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4589. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4590. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4591. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4592. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4593. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4594. Failed writing message. Aborting connection.
  4595. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4596. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4597. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4598. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4599. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4600. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4601. Failed writing message. Aborting connection.
  4602. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4603. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4604. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4605. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4606. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4607. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4608. Failed writing message. Aborting connection.
  4609. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4610. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4611. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4612. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4613. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4614. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4615. Failed writing message. Aborting connection.
  4616. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4617. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4618. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4619. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4620. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4621. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4622. Failed writing message. Aborting connection.
  4623. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4624. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4625. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4626. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4627. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4628. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4629. Failed writing message. Aborting connection.
  4630. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4631. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4632. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4633. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4634. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4635. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4636. Failed writing message. Aborting connection.
  4637. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4638. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4639. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4640. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4641. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4642. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4643. Failed writing message. Aborting connection.
  4644. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4645. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4646. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4647. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4648. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4649. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4650. Failed writing message. Aborting connection.
  4651. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4652. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4653. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4654. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4655. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4656. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4657. Failed writing message. Aborting connection.
  4658. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4659. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4660. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4661. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4662. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4663. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4664. Failed writing message. Aborting connection.
  4665. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4666. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4667. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4668. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4669. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4670. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4671. Failed writing message. Aborting connection.
  4672. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4673. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4674. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4675. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4676. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4677. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4678. Failed writing message. Aborting connection.
  4679. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4680. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4681. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4682. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4683. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4684. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4685. Failed writing message. Aborting connection.
  4686. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4687. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4688. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4689. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4690. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4691. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4692. Failed writing message. Aborting connection.
  4693. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4694. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4695. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4696. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4697. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4698. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4699. Failed writing message. Aborting connection.
  4700. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4701. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4702. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4703. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4704. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4705. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4706. Failed writing message. Aborting connection.
  4707. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4708. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4709. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4710. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4711. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4712. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4713. Failed writing message. Aborting connection.
  4714. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4715. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4716. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4717. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4718. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4719. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4720. Failed writing message. Aborting connection.
  4721. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4722. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4723. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4724. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4725. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4726. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4727. Failed writing message. Aborting connection.
  4728. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4729. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4730. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4731. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4732. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4733. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4734. Failed writing message. Aborting connection.
  4735. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4736. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4737. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4738. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4739. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4740. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4741. Failed writing message. Aborting connection.
  4742. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4743. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4744. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4745. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4746. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4747. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4748. Failed writing message. Aborting connection.
  4749. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4750. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4751. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4752. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4753. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4754. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4755. Failed writing message. Aborting connection.
  4756. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4757. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4758. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4759. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4760. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4761. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4762. Failed writing message. Aborting connection.
  4763. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4764. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4765. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4766. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4767. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4768. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4769. Failed writing message. Aborting connection.
  4770. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4771. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4772. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4773. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4774. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4775. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4776. Failed writing message. Aborting connection.
  4777. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4778. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4779. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4780. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4781. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4782. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4783. Failed writing message. Aborting connection.
  4784. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4785. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4786. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4787. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4788. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4789. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4790. Failed writing message. Aborting connection.
  4791. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4792. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4793. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4794. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4795. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4796. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4797. Failed writing message. Aborting connection.
  4798. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4799. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4800. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4801. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4802. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4803. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4804. Failed writing message. Aborting connection.
  4805. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4806. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4807. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4808. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4809. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4810. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4811. Failed writing message. Aborting connection.
  4812. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4813. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4814. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4815. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4816. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4817. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4818. Failed writing message. Aborting connection.
  4819. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4820. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4821. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4822. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4823. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4824. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4825. Failed writing message. Aborting connection.
  4826. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4827. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4828. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4829. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4830. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4831. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4832. Failed writing message. Aborting connection.
  4833. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4834. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4835. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4836. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4837. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4838. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4839. Failed writing message. Aborting connection.
  4840. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4841. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4842. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4843. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4844. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4845. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4846. Failed writing message. Aborting connection.
  4847. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4848. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4849. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4850. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4851. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4852. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4853. Failed writing message. Aborting connection.
  4854. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4855. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4856. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4857. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4858. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4859. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4860. Failed writing message. Aborting connection.
  4861. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4862. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4863. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4864. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4865. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4866. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4867. Failed writing message. Aborting connection.
  4868. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4869. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4870. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4871. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4872. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4873. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4874. Failed writing message. Aborting connection.
  4875. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4876. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4877. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4878. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4879. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4880. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4881. Failed writing message. Aborting connection.
  4882. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4883. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4884. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4885. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4886. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4887. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4888. Failed writing message. Aborting connection.
  4889. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4890. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4891. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4892. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4893. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4894. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4895. Failed writing message. Aborting connection.
  4896. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4897. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4898. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4899. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4900. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4901. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4902. Failed writing message. Aborting connection.
  4903. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4904. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4905. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4906. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4907. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4908. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4909. Failed writing message. Aborting connection.
  4910. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4911. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4912. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4913. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4914. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4915. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4916. Failed writing message. Aborting connection.
  4917. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4918. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4919. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4920. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4921. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4922. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4923. Failed writing message. Aborting connection.
  4924. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4925. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4926. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4927. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4928. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4929. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4930. Failed writing message. Aborting connection.
  4931. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4932. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4933. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4934. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4935. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4936. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4937. Failed writing message. Aborting connection.
  4938. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4939. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4940. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4941. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4942. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4943. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4944. Failed writing message. Aborting connection.
  4945. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4946. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4947. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4948. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4949. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4950. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4951. Failed writing message. Aborting connection.
  4952. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4953. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4954. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4955. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4956. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4957. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4958. Failed writing message. Aborting connection.
  4959. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4960. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4961. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4962. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4963. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4964. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4965. Failed writing message. Aborting connection.
  4966. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4967. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4968. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4969. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4970. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4971. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4972. Failed writing message. Aborting connection.
  4973. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4974. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4975. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4976. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4977. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4978. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4979. Failed writing message. Aborting connection.
  4980. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4981. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4982. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4983. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4984. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4985. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4986. Failed writing message. Aborting connection.
  4987. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4988. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4989. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4990. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4991. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4992. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  4993. Failed writing message. Aborting connection.
  4994. System.InvalidOperationException: Writing is not allowed after writer was completed.
  4995. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  4996. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4997. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  4998. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  4999. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5000. Failed writing message. Aborting connection.
  5001. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5002. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5003. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5004. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5005. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5006. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5007. Failed writing message. Aborting connection.
  5008. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5009. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5010. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5011. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5012. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5013. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5014. Failed writing message. Aborting connection.
  5015. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5016. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5017. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5018. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5019. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5020. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5021. Failed writing message. Aborting connection.
  5022. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5023. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5024. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5025. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5026. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5027. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5028. Failed writing message. Aborting connection.
  5029. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5030. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5031. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5032. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5033. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5034. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5035. Failed writing message. Aborting connection.
  5036. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5037. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5038. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5039. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5040. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5041. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5042. Failed writing message. Aborting connection.
  5043. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5044. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5045. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5046. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5047. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5048. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5049. Failed writing message. Aborting connection.
  5050. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5051. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5052. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5053. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5054. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5055. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5056. Failed writing message. Aborting connection.
  5057. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5058. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5059. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5060. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5061. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5062. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5063. Failed writing message. Aborting connection.
  5064. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5065. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5066. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5067. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5068. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5069. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5070. Failed writing message. Aborting connection.
  5071. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5072. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5073. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5074. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5075. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5076. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5077. Failed writing message. Aborting connection.
  5078. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5079. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5080. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5081. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5082. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5083. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5084. Failed writing message. Aborting connection.
  5085. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5086. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5087. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5088. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5089. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5090. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5091. Failed writing message. Aborting connection.
  5092. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5093. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5094. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5095. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5096. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5097. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5098. Failed writing message. Aborting connection.
  5099. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5100. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5101. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5102. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5103. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5104. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5105. Failed writing message. Aborting connection.
  5106. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5107. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5108. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5109. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5110. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5111. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5112. Failed writing message. Aborting connection.
  5113. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5114. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5115. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5116. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5117. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5118. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5119. Failed writing message. Aborting connection.
  5120. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5121. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5122. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5123. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5124. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5125. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5126. Failed writing message. Aborting connection.
  5127. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5128. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5129. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5130. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5131. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5132. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5133. Failed writing message. Aborting connection.
  5134. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5135. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5136. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5137. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5138. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5139. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5140. Failed writing message. Aborting connection.
  5141. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5142. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5143. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5144. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5145. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5146. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5147. Failed writing message. Aborting connection.
  5148. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5149. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5150. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5151. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5152. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5153. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5154. Failed writing message. Aborting connection.
  5155. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5156. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5157. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5158. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5159. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5160. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5161. Failed writing message. Aborting connection.
  5162. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5163. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5164. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5165. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5166. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5167. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5168. Failed writing message. Aborting connection.
  5169. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5170. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5171. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5172. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5173. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5174. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5175. Failed writing message. Aborting connection.
  5176. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5177. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5178. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5179. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5180. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5181. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5182. Failed writing message. Aborting connection.
  5183. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5184. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5185. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5186. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5187. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5188. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5189. Failed writing message. Aborting connection.
  5190. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5191. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5192. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5193. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5194. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5195. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5196. Failed writing message. Aborting connection.
  5197. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5198. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5199. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5200. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5201. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5202. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5203. Failed writing message. Aborting connection.
  5204. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5205. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5206. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5207. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5208. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5209. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5210. Failed writing message. Aborting connection.
  5211. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5212. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5213. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5214. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5215. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5216. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5217. Failed writing message. Aborting connection.
  5218. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5219. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5220. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5221. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5222. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5223. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5224. Failed writing message. Aborting connection.
  5225. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5226. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5227. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5228. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5229. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5230. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5231. Failed writing message. Aborting connection.
  5232. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5233. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5234. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5235. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5236. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5237. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5238. Failed writing message. Aborting connection.
  5239. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5240. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5241. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5242. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5243. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5244. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5245. Failed writing message. Aborting connection.
  5246. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5247. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5248. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5249. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5250. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5251. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5252. Failed writing message. Aborting connection.
  5253. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5254. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5255. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5256. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5257. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5258. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5259. Failed writing message. Aborting connection.
  5260. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5261. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5262. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5263. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5264. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5265. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5266. Failed writing message. Aborting connection.
  5267. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5268. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5269. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5270. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5271. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5272. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5273. Failed writing message. Aborting connection.
  5274. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5275. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5276. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5277. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5278. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5279. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5280. Failed writing message. Aborting connection.
  5281. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5282. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5283. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5284. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5285. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5286. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5287. Failed writing message. Aborting connection.
  5288. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5289. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5290. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5291. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5292. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5293. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5294. Failed writing message. Aborting connection.
  5295. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5296. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5297. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5298. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5299. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5300. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5301. Failed writing message. Aborting connection.
  5302. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5303. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5304. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5305. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5306. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5307. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5308. Failed writing message. Aborting connection.
  5309. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5310. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5311. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5312. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5313. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5314. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5315. Failed writing message. Aborting connection.
  5316. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5317. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5318. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5319. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5320. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5321. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5322. Failed writing message. Aborting connection.
  5323. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5324. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5325. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5326. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5327. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5328. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5329. Failed writing message. Aborting connection.
  5330. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5331. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5332. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5333. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5334. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5335. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5336. Failed writing message. Aborting connection.
  5337. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5338. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5339. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5340. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5341. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5342. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5343. Failed writing message. Aborting connection.
  5344. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5345. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5346. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5347. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5348. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5349. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5350. Failed writing message. Aborting connection.
  5351. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5352. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5353. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5354. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5355. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5356. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5357. Failed writing message. Aborting connection.
  5358. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5359. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5360. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5361. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5362. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5363. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5364. Failed writing message. Aborting connection.
  5365. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5366. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5367. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5368. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5369. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5370. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5371. Failed writing message. Aborting connection.
  5372. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5373. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5374. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5375. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5376. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5377. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5378. Failed writing message. Aborting connection.
  5379. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5380. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5381. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5382. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5383. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5384. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5385. Failed writing message. Aborting connection.
  5386. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5387. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5388. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5389. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5390. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5391. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5392. Failed writing message. Aborting connection.
  5393. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5394. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5395. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5396. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5397. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5398. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5399. Failed writing message. Aborting connection.
  5400. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5401. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5402. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5403. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5404. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5405. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5406. Failed writing message. Aborting connection.
  5407. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5408. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5409. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5410. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5411. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5412. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5413. Failed writing message. Aborting connection.
  5414. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5415. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5416. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5417. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5418. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5419. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5420. Failed writing message. Aborting connection.
  5421. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5422. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5423. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5424. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5425. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5426. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5427. Failed writing message. Aborting connection.
  5428. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5429. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5430. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5431. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5432. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5433. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5434. Failed writing message. Aborting connection.
  5435. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5436. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5437. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5438. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5439. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5440. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5441. Failed writing message. Aborting connection.
  5442. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5443. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5444. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5445. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5446. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5447. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5448. Failed writing message. Aborting connection.
  5449. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5450. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5451. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5452. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5453. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5454. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5455. Failed writing message. Aborting connection.
  5456. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5457. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5458. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5459. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5460. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5461. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5462. Failed writing message. Aborting connection.
  5463. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5464. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5465. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5466. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5467. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5468. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5469. Failed writing message. Aborting connection.
  5470. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5471. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5472. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5473. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5474. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5475. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5476. Failed writing message. Aborting connection.
  5477. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5478. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5479. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5480. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5481. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5482. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5483. Failed writing message. Aborting connection.
  5484. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5485. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5486. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5487. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5488. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5489. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5490. Failed writing message. Aborting connection.
  5491. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5492. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5493. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5494. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5495. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5496. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5497. Failed writing message. Aborting connection.
  5498. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5499. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5500. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5501. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5502. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5503. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5504. Failed writing message. Aborting connection.
  5505. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5506. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5507. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5508. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5509. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5510. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5511. Failed writing message. Aborting connection.
  5512. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5513. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5514. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5515. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5516. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5517. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5518. Failed writing message. Aborting connection.
  5519. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5520. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5521. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5522. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5523. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5524. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5525. Failed writing message. Aborting connection.
  5526. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5527. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5528. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5529. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5530. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5531. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5532. Failed writing message. Aborting connection.
  5533. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5534. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5535. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5536. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5537. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5538. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5539. Failed writing message. Aborting connection.
  5540. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5541. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5542. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5543. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5544. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5545. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5546. Failed writing message. Aborting connection.
  5547. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5548. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5549. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5550. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5551. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5552. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5553. Failed writing message. Aborting connection.
  5554. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5555. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5556. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5557. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5558. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5559. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5560. Failed writing message. Aborting connection.
  5561. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5562. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5563. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5564. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5565. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5566. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5567. Failed writing message. Aborting connection.
  5568. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5569. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5570. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5571. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5572. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5573. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5574. Failed writing message. Aborting connection.
  5575. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5576. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5577. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5578. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5579. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5580. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5581. Failed writing message. Aborting connection.
  5582. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5583. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5584. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5585. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5586. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5587. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5588. Failed writing message. Aborting connection.
  5589. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5590. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5591. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5592. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5593. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5594. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5595. Failed writing message. Aborting connection.
  5596. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5597. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5598. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5599. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5600. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5601. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5602. Failed writing message. Aborting connection.
  5603. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5604. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5605. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5606. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5607. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5608. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5609. Failed writing message. Aborting connection.
  5610. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5611. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5612. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5613. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5614. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5615. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5616. Failed writing message. Aborting connection.
  5617. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5618. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5619. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5620. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5621. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5622. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5623. Failed writing message. Aborting connection.
  5624. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5625. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5626. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5627. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5628. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5629. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5630. Failed writing message. Aborting connection.
  5631. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5632. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5633. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5634. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5635. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5636. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5637. Failed writing message. Aborting connection.
  5638. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5639. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5640. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5641. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5642. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5643. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5644. Failed writing message. Aborting connection.
  5645. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5646. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5647. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5648. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5649. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5650. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5651. Failed writing message. Aborting connection.
  5652. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5653. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5654. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5655. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5656. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5657. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5658. Failed writing message. Aborting connection.
  5659. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5660. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5661. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5662. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5663. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5664. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5665. Failed writing message. Aborting connection.
  5666. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5667. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5668. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5669. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5670. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5671. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5672. Failed writing message. Aborting connection.
  5673. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5674. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5675. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5676. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5677. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5678. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5679. Failed writing message. Aborting connection.
  5680. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5681. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5682. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5683. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5684. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5685. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5686. Failed writing message. Aborting connection.
  5687. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5688. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5689. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5690. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5691. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5692. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5693. Failed writing message. Aborting connection.
  5694. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5695. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5696. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5697. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5698. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5699. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5700. Failed writing message. Aborting connection.
  5701. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5702. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5703. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5704. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5705. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5706. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5707. Failed writing message. Aborting connection.
  5708. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5709. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5710. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5711. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5712. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5713. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5714. Failed writing message. Aborting connection.
  5715. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5716. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5717. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5718. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5719. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5720. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5721. Failed writing message. Aborting connection.
  5722. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5723. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5724. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5725. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5726. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5727. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5728. Failed writing message. Aborting connection.
  5729. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5730. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5731. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5732. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5733. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5734. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5735. Failed writing message. Aborting connection.
  5736. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5737. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5738. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5739. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5740. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5741. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5742. Failed writing message. Aborting connection.
  5743. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5744. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5745. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5746. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5747. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5748. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5749. Failed writing message. Aborting connection.
  5750. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5751. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5752. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5753. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5754. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5755. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5756. Failed writing message. Aborting connection.
  5757. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5758. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5759. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5760. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5761. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5762. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5763. Failed writing message. Aborting connection.
  5764. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5765. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5766. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5767. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5768. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5769. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5770. Failed writing message. Aborting connection.
  5771. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5772. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5773. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5774. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5775. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5776. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5777. Failed writing message. Aborting connection.
  5778. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5779. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5780. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5781. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5782. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5783. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5784. Failed writing message. Aborting connection.
  5785. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5786. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5787. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5788. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5789. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5790. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5791. Failed writing message. Aborting connection.
  5792. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5793. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5794. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5795. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5796. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5797. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5798. Failed writing message. Aborting connection.
  5799. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5800. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5801. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5802. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5803. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5804. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5805. Failed writing message. Aborting connection.
  5806. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5807. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5808. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5809. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5810. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5811. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5812. Failed writing message. Aborting connection.
  5813. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5814. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5815. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5816. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5817. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5818. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5819. Failed writing message. Aborting connection.
  5820. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5821. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5822. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5823. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5824. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5825. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5826. Failed writing message. Aborting connection.
  5827. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5828. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5829. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5830. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5831. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5832. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5833. Failed writing message. Aborting connection.
  5834. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5835. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5836. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5837. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5838. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5839. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5840. Failed writing message. Aborting connection.
  5841. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5842. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5843. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5844. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5845. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5846. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5847. Failed writing message. Aborting connection.
  5848. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5849. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5850. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5851. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5852. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5853. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5854. Failed writing message. Aborting connection.
  5855. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5856. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5857. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5858. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5859. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5860. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5861. Failed writing message. Aborting connection.
  5862. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5863. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5864. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5865. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5866. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5867. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5868. Failed writing message. Aborting connection.
  5869. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5870. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5871. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5872. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5873. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5874. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5875. Failed writing message. Aborting connection.
  5876. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5877. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5878. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5879. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5880. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5881. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5882. Failed writing message. Aborting connection.
  5883. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5884. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5885. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5886. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5887. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5888. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5889. Failed writing message. Aborting connection.
  5890. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5891. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5892. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5893. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5894. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5895. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5896. Failed writing message. Aborting connection.
  5897. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5898. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5899. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5900. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5901. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5902. [00:11:10] Current: 92452, peak: 95146, connected: 0, disconnected: 1716, rate: -1716/s
  5903. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5904. Failed writing message. Aborting connection.
  5905. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5906. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5907. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5908. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5909. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5910. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5911. Failed writing message. Aborting connection.
  5912. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5913. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5914. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5915. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5916. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5917. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5918. Failed writing message. Aborting connection.
  5919. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5920. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5921. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5922. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5923. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5924. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5925. Failed writing message. Aborting connection.
  5926. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5927. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5928. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5929. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5930. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5931. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5932. Failed writing message. Aborting connection.
  5933. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5934. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5935. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5936. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5937. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5938. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5939. Failed writing message. Aborting connection.
  5940. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5941. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5942. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5943. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5944. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5945. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5946. Failed writing message. Aborting connection.
  5947. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5948. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5949. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5950. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5951. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5952. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5953. Failed writing message. Aborting connection.
  5954. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5955. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5956. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5957. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5958. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5959. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5960. Failed writing message. Aborting connection.
  5961. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5962. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5963. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5964. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5965. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5966. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5967. Failed writing message. Aborting connection.
  5968. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5969. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5970. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5971. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5972. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5973. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5974. Failed writing message. Aborting connection.
  5975. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5976. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5977. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5978. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5979. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5980. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5981. Failed writing message. Aborting connection.
  5982. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5983. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5984. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5985. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5986. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5987. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5988. Failed writing message. Aborting connection.
  5989. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5990. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5991. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5992. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5993. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  5994. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  5995. Failed writing message. Aborting connection.
  5996. System.InvalidOperationException: Writing is not allowed after writer was completed.
  5997. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  5998. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  5999. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6000. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6001. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6002. Failed writing message. Aborting connection.
  6003. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6004. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6005. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6006. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6007. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6008. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6009. Failed writing message. Aborting connection.
  6010. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6011. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6012. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6013. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6014. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6015. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6016. Failed writing message. Aborting connection.
  6017. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6018. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6019. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6020. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6021. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6022. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6023. Failed writing message. Aborting connection.
  6024. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6025. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6026. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6027. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6028. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6029. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6030. Failed writing message. Aborting connection.
  6031. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6032. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6033. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6034. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6035. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6036. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6037. Failed writing message. Aborting connection.
  6038. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6039. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6040. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6041. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6042. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6043. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6044. Failed writing message. Aborting connection.
  6045. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6046. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6047. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6048. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6049. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6050. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6051. Failed writing message. Aborting connection.
  6052. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6053. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6054. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6055. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6056. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6057. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6058. Failed writing message. Aborting connection.
  6059. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6060. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6061. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6062. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6063. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6064. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6065. Failed writing message. Aborting connection.
  6066. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6067. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6068. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6069. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6070. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6071. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6072. Failed writing message. Aborting connection.
  6073. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6074. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6075. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6076. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6077. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6078. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6079. Failed writing message. Aborting connection.
  6080. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6081. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6082. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6083. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6084. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6085. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6086. Failed writing message. Aborting connection.
  6087. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6088. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6089. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6090. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6091. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6092. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6093. Failed writing message. Aborting connection.
  6094. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6095. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6096. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6097. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6098. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6099. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6100. Failed writing message. Aborting connection.
  6101. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6102. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6103. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6104. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6105. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6106. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6107. Failed writing message. Aborting connection.
  6108. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6109. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6110. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6111. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6112. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6113. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6114. Failed writing message. Aborting connection.
  6115. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6116. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6117. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6118. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6119. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6120. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6121. Failed writing message. Aborting connection.
  6122. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6123. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6124. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6125. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6126. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6127. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6128. Failed writing message. Aborting connection.
  6129. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6130. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6131. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6132. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6133. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6134. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6135. Failed writing message. Aborting connection.
  6136. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6137. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6138. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6139. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6140. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6141. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6142. Failed writing message. Aborting connection.
  6143. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6144. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6145. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6146. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6147. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6148. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6149. Failed writing message. Aborting connection.
  6150. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6151. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6152. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6153. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6154. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6155. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6156. Failed writing message. Aborting connection.
  6157. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6158. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6159. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6160. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6161. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6162. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6163. Failed writing message. Aborting connection.
  6164. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6165. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6166. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6167. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6168. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6169. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6170. Failed writing message. Aborting connection.
  6171. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6172. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6173. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6174. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6175. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6176. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6177. Failed writing message. Aborting connection.
  6178. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6179. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6180. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6181. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6182. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6183. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6184. Failed writing message. Aborting connection.
  6185. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6186. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6187. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6188. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6189. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6190. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6191. Failed writing message. Aborting connection.
  6192. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6193. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6194. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6195. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6196. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6197. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6198. Failed writing message. Aborting connection.
  6199. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6200. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6201. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6202. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6203. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6204. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6205. Failed writing message. Aborting connection.
  6206. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6207. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6208. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6209. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6210. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6211. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6212. Failed writing message. Aborting connection.
  6213. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6214. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6215. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6216. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6217. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6218. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6219. Failed writing message. Aborting connection.
  6220. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6221. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6222. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6223. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6224. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6225. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6226. Failed writing message. Aborting connection.
  6227. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6228. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6229. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6230. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6231. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6232. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6233. Failed writing message. Aborting connection.
  6234. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6235. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6236. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6237. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6238. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6239. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6240. Failed writing message. Aborting connection.
  6241. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6242. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6243. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6244. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6245. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6246. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6247. Failed writing message. Aborting connection.
  6248. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6249. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6250. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6251. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6252. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6253. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6254. Failed writing message. Aborting connection.
  6255. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6256. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6257. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6258. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6259. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6260. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6261. Failed writing message. Aborting connection.
  6262. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6263. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6264. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6265. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6266. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6267. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6268. Failed writing message. Aborting connection.
  6269. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6270. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6271. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6272. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6273. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6274. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6275. Failed writing message. Aborting connection.
  6276. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6277. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6278. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6279. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6280. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6281. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6282. Failed writing message. Aborting connection.
  6283. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6284. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6285. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6286. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6287. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6288. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6289. Failed writing message. Aborting connection.
  6290. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6291. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6292. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6293. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6294. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6295. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6296. Failed writing message. Aborting connection.
  6297. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6298. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6299. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6300. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6301. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6302. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6303. Failed writing message. Aborting connection.
  6304. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6305. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6306. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6307. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6308. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6309. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6310. Failed writing message. Aborting connection.
  6311. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6312. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6313. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6314. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6315. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6316. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6317. Failed writing message. Aborting connection.
  6318. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6319. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6320. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6321. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6322. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6323. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6324. Failed writing message. Aborting connection.
  6325. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6326. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6327. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6328. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6329. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6330. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6331. Failed writing message. Aborting connection.
  6332. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6333. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6334. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6335. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6336. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6337. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6338. Failed writing message. Aborting connection.
  6339. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6340. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6341. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6342. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6343. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6344. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6345. Failed writing message. Aborting connection.
  6346. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6347. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6348. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6349. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6350. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6351. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6352. Failed writing message. Aborting connection.
  6353. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6354. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6355. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6356. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6357. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6358. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6359. Failed writing message. Aborting connection.
  6360. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6361. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6362. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6363. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6364. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6365. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6366. Failed writing message. Aborting connection.
  6367. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6368. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6369. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6370. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6371. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6372. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6373. Failed writing message. Aborting connection.
  6374. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6375. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6376. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6377. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6378. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6379. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6380. Failed writing message. Aborting connection.
  6381. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6382. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6383. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6384. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6385. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6386. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6387. Failed writing message. Aborting connection.
  6388. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6389. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6390. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6391. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6392. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6393. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6394. Failed writing message. Aborting connection.
  6395. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6396. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6397. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6398. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6399. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6400. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6401. Failed writing message. Aborting connection.
  6402. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6403. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6404. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6405. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6406. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6407. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6408. Failed writing message. Aborting connection.
  6409. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6410. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6411. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6412. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6413. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6414. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6415. Failed writing message. Aborting connection.
  6416. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6417. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6418. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6419. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6420. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6421. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6422. Failed writing message. Aborting connection.
  6423. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6424. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6425. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6426. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6427. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6428. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6429. Failed writing message. Aborting connection.
  6430. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6431. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6432. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6433. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6434. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6435. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6436. Failed writing message. Aborting connection.
  6437. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6438. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6439. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6440. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6441. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6442. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6443. Failed writing message. Aborting connection.
  6444. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6445. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6446. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6447. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6448. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6449. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6450. Failed writing message. Aborting connection.
  6451. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6452. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6453. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6454. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6455. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6456. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6457. Failed writing message. Aborting connection.
  6458. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6459. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6460. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6461. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6462. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6463. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6464. Failed writing message. Aborting connection.
  6465. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6466. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6467. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6468. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6469. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6470. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6471. Failed writing message. Aborting connection.
  6472. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6473. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6474. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6475. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6476. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6477. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6478. Failed writing message. Aborting connection.
  6479. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6480. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6481. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6482. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6483. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6484. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6485. Failed writing message. Aborting connection.
  6486. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6487. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6488. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6489. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6490. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6491. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6492. Failed writing message. Aborting connection.
  6493. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6494. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6495. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6496. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6497. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6498. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6499. Failed writing message. Aborting connection.
  6500. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6501. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6502. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6503. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6504. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6505. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6506. Failed writing message. Aborting connection.
  6507. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6508. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6509. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6510. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6511. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6512. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6513. Failed writing message. Aborting connection.
  6514. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6515. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6516. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6517. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6518. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6519. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6520. Failed writing message. Aborting connection.
  6521. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6522. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6523. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6524. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6525. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6526. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6527. Failed writing message. Aborting connection.
  6528. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6529. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6530. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6531. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6532. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6533. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6534. Failed writing message. Aborting connection.
  6535. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6536. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6537. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6538. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6539. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6540. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6541. Failed writing message. Aborting connection.
  6542. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6543. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6544. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6545. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6546. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6547. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6548. Failed writing message. Aborting connection.
  6549. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6550. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6551. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6552. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6553. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6554. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6555. Failed writing message. Aborting connection.
  6556. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6557. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6558. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6559. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6560. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6561. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6562. Failed writing message. Aborting connection.
  6563. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6564. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6565. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6566. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6567. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6568. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6569. Failed writing message. Aborting connection.
  6570. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6571. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6572. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6573. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6574. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6575. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6576. Failed writing message. Aborting connection.
  6577. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6578. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6579. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6580. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6581. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6582. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6583. Failed writing message. Aborting connection.
  6584. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6585. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6586. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6587. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6588. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6589. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6590. Failed writing message. Aborting connection.
  6591. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6592. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6593. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6594. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6595. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6596. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6597. Failed writing message. Aborting connection.
  6598. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6599. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6600. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6601. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6602. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6603. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6604. Failed writing message. Aborting connection.
  6605. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6606. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6607. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6608. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6609. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6610. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6611. Failed writing message. Aborting connection.
  6612. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6613. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6614. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6615. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6616. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6617. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6618. Failed writing message. Aborting connection.
  6619. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6620. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6621. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6622. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6623. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6624. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6625. Failed writing message. Aborting connection.
  6626. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6627. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6628. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6629. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6630. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6631. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6632. Failed writing message. Aborting connection.
  6633. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6634. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6635. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6636. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6637. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6638. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6639. Failed writing message. Aborting connection.
  6640. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6641. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6642. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6643. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6644. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6645. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6646. Failed writing message. Aborting connection.
  6647. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6648. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6649. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6650. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6651. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6652. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6653. Failed writing message. Aborting connection.
  6654. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6655. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6656. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6657. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6658. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6659. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6660. Failed writing message. Aborting connection.
  6661. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6662. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6663. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6664. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6665. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6666. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6667. Failed writing message. Aborting connection.
  6668. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6669. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6670. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6671. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6672. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6673. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6674. Failed writing message. Aborting connection.
  6675. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6676. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6677. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6678. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6679. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6680. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6681. Failed writing message. Aborting connection.
  6682. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6683. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6684. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6685. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6686. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6687. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6688. Failed writing message. Aborting connection.
  6689. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6690. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6691. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6692. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6693. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6694. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6695. Failed writing message. Aborting connection.
  6696. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6697. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6698. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6699. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6700. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6701. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6702. Failed writing message. Aborting connection.
  6703. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6704. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6705. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6706. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6707. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6708. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6709. Failed writing message. Aborting connection.
  6710. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6711. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6712. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6713. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6714. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6715. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6716. Failed writing message. Aborting connection.
  6717. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6718. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6719. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6720. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6721. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6722. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6723. Failed writing message. Aborting connection.
  6724. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6725. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6726. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6727. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6728. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6729. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6730. Failed writing message. Aborting connection.
  6731. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6732. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6733. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6734. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6735. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6736. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6737. Failed writing message. Aborting connection.
  6738. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6739. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6740. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6741. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6742. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6743. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6744. Failed writing message. Aborting connection.
  6745. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6746. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6747. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6748. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6749. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6750. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6751. Failed writing message. Aborting connection.
  6752. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6753. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6754. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6755. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6756. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6757. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6758. Failed writing message. Aborting connection.
  6759. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6760. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6761. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6762. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6763. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6764. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6765. Failed writing message. Aborting connection.
  6766. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6767. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6768. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6769. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6770. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6771. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6772. Failed writing message. Aborting connection.
  6773. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6774. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6775. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6776. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6777. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6778. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6779. Failed writing message. Aborting connection.
  6780. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6781. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6782. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6783. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6784. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6785. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6786. Failed writing message. Aborting connection.
  6787. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6788. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6789. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6790. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6791. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6792. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6793. Failed writing message. Aborting connection.
  6794. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6795. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6796. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6797. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6798. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6799. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6800. Failed writing message. Aborting connection.
  6801. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6802. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6803. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6804. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6805. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6806. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6807. Failed writing message. Aborting connection.
  6808. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6809. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6810. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6811. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6812. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6813. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6814. Failed writing message. Aborting connection.
  6815. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6816. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6817. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6818. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6819. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6820. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6821. Failed writing message. Aborting connection.
  6822. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6823. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6824. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6825. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6826. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6827. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6828. Failed writing message. Aborting connection.
  6829. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6830. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6831. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6832. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6833. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6834. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6835. Failed writing message. Aborting connection.
  6836. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6837. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6838. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6839. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6840. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6841. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6842. Failed writing message. Aborting connection.
  6843. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6844. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6845. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6846. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6847. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6848. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6849. Failed writing message. Aborting connection.
  6850. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6851. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6852. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6853. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6854. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6855. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6856. Failed writing message. Aborting connection.
  6857. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6858. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6859. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6860. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6861. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6862. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6863. Failed writing message. Aborting connection.
  6864. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6865. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6866. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6867. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6868. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6869. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6870. Failed writing message. Aborting connection.
  6871. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6872. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6873. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6874. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6875. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6876. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6877. Failed writing message. Aborting connection.
  6878. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6879. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6880. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6881. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6882. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6883. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6884. Failed writing message. Aborting connection.
  6885. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6886. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6887. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6888. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6889. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6890. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6891. Failed writing message. Aborting connection.
  6892. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6893. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6894. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6895. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6896. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6897. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6898. Failed writing message. Aborting connection.
  6899. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6900. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6901. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6902. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6903. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6904. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6905. Failed writing message. Aborting connection.
  6906. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6907. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6908. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6909. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6910. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6911. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6912. Failed writing message. Aborting connection.
  6913. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6914. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6915. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6916. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6917. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6918. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6919. Failed writing message. Aborting connection.
  6920. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6921. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6922. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6923. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6924. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6925. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6926. Failed writing message. Aborting connection.
  6927. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6928. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6929. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6930. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6931. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6932. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6933. Failed writing message. Aborting connection.
  6934. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6935. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6936. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6937. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6938. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6939. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6940. Failed writing message. Aborting connection.
  6941. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6942. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6943. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6944. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6945. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6946. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6947. Failed writing message. Aborting connection.
  6948. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6949. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6950. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6951. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6952. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6953. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6954. Failed writing message. Aborting connection.
  6955. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6956. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6957. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6958. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6959. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6960. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6961. Failed writing message. Aborting connection.
  6962. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6963. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6964. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6965. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6966. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6967. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6968. Failed writing message. Aborting connection.
  6969. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6970. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6971. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6972. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6973. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6974. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6975. Failed writing message. Aborting connection.
  6976. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6977. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6978. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6979. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6980. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6981. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6982. Failed writing message. Aborting connection.
  6983. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6984. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6985. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6986. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6987. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6988. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6989. Failed writing message. Aborting connection.
  6990. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6991. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6992. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6993. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  6994. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  6995. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  6996. Failed writing message. Aborting connection.
  6997. System.InvalidOperationException: Writing is not allowed after writer was completed.
  6998. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  6999. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7000. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7001. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7002. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7003. Failed writing message. Aborting connection.
  7004. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7005. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7006. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7007. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7008. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7009. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7010. Failed writing message. Aborting connection.
  7011. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7012. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7013. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7014. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7015. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7016. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7017. Failed writing message. Aborting connection.
  7018. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7019. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7020. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7021. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7022. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7023. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7024. Failed writing message. Aborting connection.
  7025. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7026. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7027. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7028. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7029. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7030. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7031. Failed writing message. Aborting connection.
  7032. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7033. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7034. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7035. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7036. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7037. [00:11:13] Current: 92440, peak: 95146, connected: 0, disconnected: 12, rate: -12/s
  7038. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7039. Failed writing message. Aborting connection.
  7040. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7041. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7042. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7043. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7044. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7045. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7046. Failed writing message. Aborting connection.
  7047. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7048. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7049. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7050. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7051. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7052. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7053. Failed writing message. Aborting connection.
  7054. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7055. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7056. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7057. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7058. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7059. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7060. Failed writing message. Aborting connection.
  7061. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7062. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7063. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7064. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7065. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7066. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7067. Failed writing message. Aborting connection.
  7068. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7069. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7070. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7071. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7072. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7073. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7074. Failed writing message. Aborting connection.
  7075. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7076. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7077. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7078. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7079. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7080. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7081. Failed writing message. Aborting connection.
  7082. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7083. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7084. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7085. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7086. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7087. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7088. Failed writing message. Aborting connection.
  7089. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7090. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7091. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7092. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7093. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7094. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7095. Failed writing message. Aborting connection.
  7096. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7097. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7098. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7099. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7100. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7101. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7102. Failed writing message. Aborting connection.
  7103. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7104. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7105. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7106. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7107. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7108. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7109. Failed writing message. Aborting connection.
  7110. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7111. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7112. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7113. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7114. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7115. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7116. Failed writing message. Aborting connection.
  7117. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7118. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7119. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7120. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7121. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7122. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7123. Failed writing message. Aborting connection.
  7124. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7125. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7126. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7127. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7128. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7129. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7130. Failed writing message. Aborting connection.
  7131. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7132. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7133. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7134. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7135. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7136. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7137. Failed writing message. Aborting connection.
  7138. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7139. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7140. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7141. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7142. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7143. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7144. Failed writing message. Aborting connection.
  7145. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7146. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7147. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7148. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7149. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7150. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7151. Failed writing message. Aborting connection.
  7152. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7153. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7154. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7155. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7156. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7157. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7158. Failed writing message. Aborting connection.
  7159. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7160. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7161. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7162. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7163. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7164. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7165. Failed writing message. Aborting connection.
  7166. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7167. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7168. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7169. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7170. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7171. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7172. Failed writing message. Aborting connection.
  7173. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7174. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7175. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7176. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7177. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7178. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7179. Failed writing message. Aborting connection.
  7180. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7181. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7182. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7183. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7184. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7185. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7186. Failed writing message. Aborting connection.
  7187. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7188. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7189. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7190. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7191. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7192. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7193. Failed writing message. Aborting connection.
  7194. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7195. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7196. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7197. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7198. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7199. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7200. Failed writing message. Aborting connection.
  7201. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7202. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7203. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7204. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7205. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7206. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7207. Failed writing message. Aborting connection.
  7208. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7209. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7210. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7211. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7212. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7213. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7214. Failed writing message. Aborting connection.
  7215. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7216. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7217. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7218. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7219. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7220. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7221. Failed writing message. Aborting connection.
  7222. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7223. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7224. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7225. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7226. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7227. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7228. Failed writing message. Aborting connection.
  7229. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7230. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7231. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7232. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7233. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7234. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7235. Failed writing message. Aborting connection.
  7236. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7237. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7238. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7239. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7240. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7241. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7242. Failed writing message. Aborting connection.
  7243. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7244. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7245. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7246. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7247. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7248. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7249. Failed writing message. Aborting connection.
  7250. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7251. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7252. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7253. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7254. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7255. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7256. Failed writing message. Aborting connection.
  7257. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7258. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7259. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7260. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7261. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7262. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7263. Failed writing message. Aborting connection.
  7264. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7265. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7266. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7267. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7268. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7269. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7270. Failed writing message. Aborting connection.
  7271. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7272. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7273. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7274. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7275. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7276. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7277. Failed writing message. Aborting connection.
  7278. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7279. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7280. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7281. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7282. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7283. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7284. Failed writing message. Aborting connection.
  7285. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7286. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7287. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7288. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7289. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7290. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7291. Failed writing message. Aborting connection.
  7292. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7293. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7294. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7295. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7296. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7297. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7298. Failed writing message. Aborting connection.
  7299. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7300. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7301. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7302. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7303. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7304. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7305. Failed writing message. Aborting connection.
  7306. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7307. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7308. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7309. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7310. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7311. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7312. Failed writing message. Aborting connection.
  7313. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7314. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7315. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7316. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7317. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7318. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7319. Failed writing message. Aborting connection.
  7320. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7321. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7322. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7323. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7324. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7325. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7326. Failed writing message. Aborting connection.
  7327. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7328. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7329. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7330. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7331. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7332. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7333. Failed writing message. Aborting connection.
  7334. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7335. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7336. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7337. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7338. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7339. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7340. Failed writing message. Aborting connection.
  7341. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7342. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7343. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7344. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7345. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7346. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7347. Failed writing message. Aborting connection.
  7348. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7349. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7350. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7351. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7352. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7353. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7354. Failed writing message. Aborting connection.
  7355. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7356. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7357. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7358. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7359. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7360. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7361. Failed writing message. Aborting connection.
  7362. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7363. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7364. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7365. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7366. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7367. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7368. Failed writing message. Aborting connection.
  7369. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7370. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7371. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7372. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7373. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7374. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7375. Failed writing message. Aborting connection.
  7376. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7377. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7378. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7379. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7380. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7381. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7382. Failed writing message. Aborting connection.
  7383. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7384. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7385. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7386. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7387. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7388. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7389. Failed writing message. Aborting connection.
  7390. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7391. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7392. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7393. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7394. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7395. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7396. Failed writing message. Aborting connection.
  7397. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7398. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7399. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7400. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7401. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7402. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7403. Failed writing message. Aborting connection.
  7404. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7405. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7406. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7407. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7408. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7409. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7410. Failed writing message. Aborting connection.
  7411. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7412. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7413. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7414. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7415. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7416. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7417. Failed writing message. Aborting connection.
  7418. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7419. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7420. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7421. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7422. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7423. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7424. Failed writing message. Aborting connection.
  7425. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7426. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7427. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7428. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7429. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7430. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7431. Failed writing message. Aborting connection.
  7432. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7433. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7434. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7435. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7436. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7437. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7438. Failed writing message. Aborting connection.
  7439. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7440. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7441. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7442. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7443. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7444. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7445. Failed writing message. Aborting connection.
  7446. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7447. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7448. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7449. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7450. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7451. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7452. Failed writing message. Aborting connection.
  7453. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7454. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7455. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7456. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7457. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7458. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7459. Failed writing message. Aborting connection.
  7460. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7461. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7462. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7463. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7464. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7465. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7466. Failed writing message. Aborting connection.
  7467. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7468. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7469. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7470. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7471. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7472. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7473. Failed writing message. Aborting connection.
  7474. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7475. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7476. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7477. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7478. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7479. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7480. Failed writing message. Aborting connection.
  7481. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7482. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7483. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7484. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7485. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7486. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7487. Failed writing message. Aborting connection.
  7488. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7489. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7490. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7491. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7492. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7493. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7494. Failed writing message. Aborting connection.
  7495. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7496. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7497. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7498. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7499. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7500. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7501. Failed writing message. Aborting connection.
  7502. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7503. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7504. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7505. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7506. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7507. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7508. Failed writing message. Aborting connection.
  7509. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7510. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7511. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7512. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7513. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7514. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7515. Failed writing message. Aborting connection.
  7516. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7517. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7518. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7519. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7520. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7521. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7522. Failed writing message. Aborting connection.
  7523. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7524. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7525. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7526. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7527. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7528. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7529. Failed writing message. Aborting connection.
  7530. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7531. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7532. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7533. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7534. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7535. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7536. Failed writing message. Aborting connection.
  7537. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7538. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7539. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7540. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7541. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7542. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7543. Failed writing message. Aborting connection.
  7544. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7545. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7546. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7547. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7548. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7549. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7550. Failed writing message. Aborting connection.
  7551. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7552. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7553. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7554. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7555. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7556. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7557. Failed writing message. Aborting connection.
  7558. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7559. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7560. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7561. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7562. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7563. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7564. Failed writing message. Aborting connection.
  7565. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7566. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7567. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7568. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7569. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7570. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7571. Failed writing message. Aborting connection.
  7572. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7573. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7574. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7575. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7576. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7577. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7578. Failed writing message. Aborting connection.
  7579. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7580. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7581. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7582. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7583. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7584. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7585. Failed writing message. Aborting connection.
  7586. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7587. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7588. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7589. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7590. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7591. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7592. Failed writing message. Aborting connection.
  7593. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7594. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7595. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7596. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7597. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7598. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7599. Failed writing message. Aborting connection.
  7600. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7601. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7602. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7603. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7604. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7605. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7606. Failed writing message. Aborting connection.
  7607. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7608. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7609. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7610. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7611. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7612. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7613. Failed writing message. Aborting connection.
  7614. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7615. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7616. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7617. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7618. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7619. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7620. Failed writing message. Aborting connection.
  7621. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7622. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7623. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7624. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7625. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7626. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7627. Failed writing message. Aborting connection.
  7628. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7629. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7630. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7631. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7632. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7633. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7634. Failed writing message. Aborting connection.
  7635. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7636. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7637. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7638. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7639. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7640. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7641. Failed writing message. Aborting connection.
  7642. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7643. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7644. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7645. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7646. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7647. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7648. Failed writing message. Aborting connection.
  7649. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7650. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7651. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7652. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7653. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7654. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7655. Failed writing message. Aborting connection.
  7656. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7657. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7658. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7659. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7660. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7661. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7662. Failed writing message. Aborting connection.
  7663. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7664. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7665. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7666. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7667. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7668. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7669. Failed writing message. Aborting connection.
  7670. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7671. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7672. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7673. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7674. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7675. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7676. Failed writing message. Aborting connection.
  7677. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7678. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7679. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7680. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7681. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7682. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7683. Failed writing message. Aborting connection.
  7684. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7685. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7686. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7687. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7688. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7689. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7690. Failed writing message. Aborting connection.
  7691. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7692. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7693. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7694. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7695. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7696. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7697. Failed writing message. Aborting connection.
  7698. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7699. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7700. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7701. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7702. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7703. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7704. Failed writing message. Aborting connection.
  7705. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7706. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7707. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7708. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7709. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7710. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7711. Failed writing message. Aborting connection.
  7712. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7713. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7714. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7715. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7716. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7717. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7718. Failed writing message. Aborting connection.
  7719. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7720. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7721. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7722. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7723. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7724. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7725. Failed writing message. Aborting connection.
  7726. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7727. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7728. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7729. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7730. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7731. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7732. Failed writing message. Aborting connection.
  7733. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7734. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7735. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7736. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7737. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7738. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7739. Failed writing message. Aborting connection.
  7740. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7741. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7742. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7743. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7744. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7745. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7746. Failed writing message. Aborting connection.
  7747. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7748. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7749. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7750. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7751. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7752. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7753. Failed writing message. Aborting connection.
  7754. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7755. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7756. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7757. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7758. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7759. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7760. Failed writing message. Aborting connection.
  7761. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7762. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7763. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7764. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7765. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7766. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7767. Failed writing message. Aborting connection.
  7768. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7769. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7770. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7771. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7772. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7773. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7774. Failed writing message. Aborting connection.
  7775. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7776. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7777. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7778. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7779. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7780. fail: Microsoft.AspNetCore.SignalR.HubConnectionContext[6]
  7781. Failed writing message. Aborting connection.
  7782. System.InvalidOperationException: Writing is not allowed after writer was completed.
  7783. at System.IO.Pipelines.ThrowHelper.ThrowInvalidOperationException_NoWritingAllowed()
  7784. at System.IO.Pipelines.Pipe.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7785. at System.IO.Pipelines.Pipe.DefaultPipeWriter.WriteAsync(ReadOnlyMemory`1 source, CancellationToken cancellationToken)
  7786. at Microsoft.AspNetCore.SignalR.HubConnectionContext.TryWritePingSlowAsync() in /aspnetcore/src/SignalR/server/Core/src/HubConnectionContext.cs:line 301
  7787. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  7788. Heartbeat took longer than "00:00:01" at "06/10/2019 03:35:48 +00:00".
  7789. warn: Microsoft.AspNetCore.Server.Kestrel[22]
  7790. Heartbeat took longer than "00:00:01" at "06/10/2019 03:35:51 +00:00".
  7791. [00:11:20] Current: 92234, peak: 95146, connected: 0, disconnected: 206, rate: -206/s
  7792. [00:11:21] Current: 92232, peak: 95146, connected: 0, disconnected: 2, rate: -2/s
  7793. [00:11:22] Current: 92232, peak: 95146, connected: 0, disconnected: 0, rate: 0/s
  7794. [00:11:23] Current: 92232, peak: 95146, connected: 0, disconnected: 0, rate: 0/s
  7795. [00:11:24] Current: 92232, peak: 95146, connected: 0, disconnected: 0, rate: 0/s
  7796. [00:11:26] Current: 92232, peak: 95146, connected: 0, disconnected: 0, rate: 0/s
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